Uppcl Ae(Electrical Engineering) Online Test Series First

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Stepper motors are designed to move in discrete steps, allowing for precise control over the angular displacement. This makes them ideal for applications that require accurate positioning, such as in CNC machines or robotics. Unlike other types of motors, stepper motors can be easily controlled and programmed to move a specific number of steps, making them a popular choice in many industrial and automation systems. Therefore, the correct answer is that the angular displacement in a stepper motor can be precisely controlled.

The maximum torque in a 3-phase induction motor does not depend on the rotor resistance r2. This is because the maximum torque is determined by the stator current and the magnetic field produced by the stator. The rotor resistance affects the efficiency and power factor of the motor, but it does not directly impact the maximum torque that can be produced.

The correct answer is "90 ,

The dynamometer principle can be used for ammeter, voltmeter, and wattmeter because it is a method of measuring electrical power, current, and voltage. This principle involves the use of a movable coil and a fixed coil, which interact with each other when an electrical current is passed through them. The interaction between the coils produces a force that can be measured and used to determine the electrical parameters being measured. Therefore, the dynamometer principle is applicable to all three instruments: ammeter, voltmeter, and wattmeter.

Galvanised iron sheets have a coating of zinc. Zinc is commonly used as a protective coating for iron or steel to prevent corrosion. It acts as a sacrificial anode, meaning that it corrodes instead of the iron or steel, providing a barrier against moisture and other corrosive elements. This zinc coating helps to extend the lifespan of the iron sheets and protect them from rusting.

The given statements mention that "some hills are rivers", "some rivers are deserts", and "all deserts are roads". From these statements, it can be inferred that there is a possibility for some roads to be rivers because some rivers are deserts and all deserts are roads. However, there is no direct or indirect information provided to support the conclusions that some roads are hills or some deserts are hills. Therefore, only conclusion 1 follows.

Dielectric materials are substances that can store electrical energy in the form of an electric field. They have the ability to polarize under an applied electric field, allowing them to store and release electrical energy. This property makes them suitable for use in capacitors, where they can store and discharge energy as needed. Magnetic materials, semiconductors, and superconductors do not have the same ability to store electrical energy, making them incorrect choices for this question.

The Poynting vector is a mathematical concept in electromagnetism that describes the direction and magnitude of the flow of electromagnetic power. It represents the power per unit area flowing through a given surface due to the presence of electromagnetic fields. Therefore, the correct answer is "Power flow in electromagnetic."

The steady-state error refers to the difference between the desired output and the actual output of a system after it has reached a stable state. In a type one system, the steady-state error due to a step input is zero. This means that the actual output of the system matches the desired output exactly once it has settled. There is no residual error remaining.

The given voltage-source has an open circuit voltage of 12V and an internal resistance of 3 ohms. According to the equivalent current-source representation, the open circuit voltage is equivalent to the current-source strength multiplied by the resistance. Therefore, the current-source strength can be calculated as 12V / 3 ohms = 4A. Additionally, the internal resistance of the voltage-source is equivalent to the resistance in the current-source representation. Hence, the equivalent current-source is a current-source of strength 4A in shunt with a resistance of 3 ohms.

After firing an SCR, the gating pulse is removed, but the SCR will continue to conduct current. This is because once the SCR is triggered, it latches into a conducting state and continues to conduct until the current flowing through it drops below a certain threshold called the holding current. Therefore, even after the gating pulse is removed, the current in the SCR will remain the same as long as it is above the holding current.

When the diameter of the conductor is halved, the cross-sectional area of the conductor is reduced by a factor of 4 (since area is proportional to the square of the diameter). When the length of the conductor is doubled, the resistance is also doubled (since resistance is directly proportional to the length). Therefore, when the diameter is halved and the length is doubled, the resistance is increased by a factor of 8 (4 x 2), resulting in 8R Ω.

The correct answer is "Heating effect". The root mean square (RMS) value is a measure of the effective value of an alternating current or voltage. In the case of heating effect, the RMS value is used to calculate the power dissipated in a resistive element when an alternating current passes through it, which leads to the generation of heat. Therefore, the RMS value is defined based on the heating effect produced by the current.

The Thomas Cup and Uber Cup are prestigious international team competitions in the sport of badminton. The Thomas Cup is exclusively for men's teams, while the Uber Cup is for women's teams. These tournaments are held every two years and feature teams from different countries competing against each other to win the cup. Therefore, the correct answer is badminton.

The owner originally sold the plot for Rs. 18,700 but incurred a loss of 15%. To find the selling price at which the owner would gain 15%, we need to calculate the original cost of the plot. We can do this by dividing the selling price by (100% - loss percentage), which in this case is (100% - 15%) = 85%. Therefore, the original cost of the plot is Rs. 18,700 / 0.85 = Rs. 22,000. To gain 15% profit, the plot must be sold for 115% of the original cost, which is 115% of Rs. 22,000 = Rs. 25,300. Therefore, the correct answer is Rs. 25,300.

Ram is saying that the man in the photograph is the son of the only daughter of the father of Ram's brother. This means that Ram's brother is the father of the man in the photograph. Since the man in the photograph is the brother of Ram's father, Ram is the nephew of the man in the photograph. Therefore, the correct answer is Maternal Uncle.

The sum of money is distributed among A, B, C, and D in the ratio of 5:2:4:3. Let's assume the common ratio to be x. Therefore, A's share is 5x, B's share is 2x, C's share is 4x, and D's share is 3x. It is given that C gets Rs. 1000 more than D. So, 4x = 3x + 1000. Solving this equation, we get x = 1000. Therefore, B's share is 2x = 2 * 1000 = Rs. 2000.

In a d.c. series motor, the electromagnetic torque developed is proportional to the square of the armature current (Ia²). This is because the torque produced in a motor is directly related to the magnetic field strength, which is in turn determined by the current flowing through the armature. By squaring the armature current, the torque is increased proportionally, indicating that the torque is directly proportional to the square of the armature current.

SF₆ circuit breakers are preferred for EHT (Extra High Voltage) applications because they have excellent arc quenching properties. SF₆ gas has high dielectric strength, allowing it to effectively extinguish electrical arcs. It also has a high thermal conductivity, which helps in cooling down the arc quickly. SF₆ circuit breakers are compact, reliable, and require less maintenance compared to other types of circuit breakers. Additionally, SF₆ gas is non-flammable and non-toxic, making it a safe choice for high voltage applications.

The man initially walks 5 km towards the south. Then, he turns to the right and walks 3 km. After that, he turns to the left and walks 5 km. This means that he is moving in a rectangular path, with the first leg being towards the south, the second leg towards the east, the third leg towards the north, and the final leg towards the west. Therefore, the man is now in the south-west direction from the starting place.

The Fourier series of an odd periodic function contains sine harmonics only because odd periodic functions have symmetry about the origin and do not have any even terms in their Fourier series. The sine function is an odd function, meaning it is symmetric about the origin, and therefore only contributes to the odd harmonics in the Fourier series.

The given passage discusses the different aspects of beauty and states that when beauty is combined with character, it also evokes a sense of pleasure. It further explains that while a beautiful object may only satisfy the senses, a delightful object also brings joy to the mind. The passage mentions that Kalidas' descriptions of nature are delightful because they prioritize character. Therefore, the correct answer is "उसकी मनोहरता" (its delightfulness) as it aligns with the passage's explanation of beauty and character.

The sensitivity of the relay used determines the boundary of the protective zone. The relay is responsible for detecting faults or abnormal conditions in the system and initiating protective actions. The sensitivity of the relay refers to its ability to detect small changes or disturbances in the system. A more sensitive relay will have a larger protective zone, as it can detect faults farther away from its location. Therefore, the sensitivity of the relay used plays a crucial role in determining the boundary of the protective zone.

The value of emf in a dc shunt motor can be calculated using the formula: emf = (P * N * Φ) / (60 * A), where P is the number of poles, N is the speed in rpm, Φ is the flux in Wb, and A is the total number of conductors. Plugging in the given values, we get emf = (4 * 1500 * 0.4) / (60 * 1000) = 10 Volts.

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The correct answer is ∇ . D′ = ρ. This is the correct relation because it represents Gauss's law for electric fields, which states that the divergence of the electric field (∇ . D) is equal to the charge density (ρ) divided by the permittivity of free space. This equation is a fundamental equation in electromagnetism and is used to describe the behavior of electric fields in the presence of charges.

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The ripple factor of a full-wave rectifier without a filter is 0.48. The ripple factor is a measure of the amount of AC component present in the rectified output. A full-wave rectifier without a filter still has some ripple because it only rectifies the positive half cycles of the input signal, resulting in a small amount of AC component in the output. The ripple factor is defined as the ratio of the root mean square (RMS) value of the AC component to the DC component of the output. In this case, the ripple factor is 0.48, indicating that the AC component is 48% of the DC component.

The J-K flip-flop is the only flip-flop among the options where the output is clearly defined for all combinations of two inputs. In a J-K flip-flop, the output changes based on the inputs J (set) and K (reset). It has four possible combinations of inputs (00, 01, 10, 11), and each combination has a defined output. In contrast, the D type flip-flop's output depends on the input D and the clock signal, while the R-S flip-flop's output is undefined when both inputs are set to 1. Therefore, the J-K flip-flop is the correct answer.

A high load factor indicates that the total plant capacity is utilized for most of the time. This means that the power plant is operating at a high percentage of its maximum capacity, which is a desirable condition. It implies that the plant is efficiently utilizing its resources and generating power consistently, leading to increased productivity and cost-effectiveness.

The air-break circuit breaker has the lowest voltage range among the given options. This type of circuit breaker is commonly used for low voltage applications. It is designed to interrupt the flow of electric current by separating the contacts in the air. The voltage range of an air-break circuit breaker is typically limited to lower voltages compared to other types of circuit breakers such as air-blast, tank type oil, and SF₆ circuit breakers.

Since A starts the business with Rs. 3500 and B joins after 5 months, B's contribution is not mentioned in the question. However, we know that the profit is divided in the ratio 2:3. This means that B's contribution must be 3 parts out of the total of 2+3=5 parts. To find B's contribution in terms of capital, we need to multiply his share (3 parts) by the total capital invested (3500*12) and divide it by the total share (5 parts). Therefore, B's contribution in the capital is (3/5)*(3500*12) = Rs. 9000.

The equation Δ²V = - ρ/E is known as the Poisson equation. This equation relates the Laplacian of the electric potential (V) to the charge density (ρ) and the permittivity of the medium (E). It is commonly used in electrostatics and describes the behavior of electric fields in the presence of charge distributions.

A causal system is a system where the output depends only on the present and past values of the input. In the given options, y(n) = 3x[n] - 2x[n - 1] is a causal system because the output at any time n is determined by the current input x[n] and the past input x[n - 1]. The other options involve future inputs or a combination of future and present inputs, making them non-causal systems.

FET (Field Effect Transistor) is advantageous over BJT (Bipolar Junction Transistor) because of its high input impedance. This means that FET requires very little current to be applied to its gate terminal, making it more suitable for applications where the input signal is weak. In contrast, BJT has a lower input impedance, requiring a higher current to be applied to its base terminal. Therefore, FET is preferred in situations where high input impedance is desired, such as in amplifiers or sensor circuits.

When the voltage of transmission increases, the volume of conductor decreases. This is because as the voltage increases, the current flowing through the conductor decreases. According to Ohm's law, the current is inversely proportional to the voltage. Therefore, a higher voltage means a lower current, which leads to a decrease in the volume of conductor needed to carry the current.

In the 2-wattmeter method of power measurement, the total power can be calculated by summing the readings of the two wattmeters. In this case, the readings of the two wattmeters are 4.5 kW and 3.5 kW. Since the current coil of the second wattmeter has been reversed, its reading should be subtracted instead of added to the total power. Therefore, the total power can be calculated as 4.5 kW - 3.5 kW = 1 kW.

In amplitude modulation (AM), the total power is given by the formula P_total = P_c + (m^2 * P_c), where P_c is the power of the carrier wave and m is the modulation index. In this case, the power of the carrier wave is 400 W and the modulation index is 0.75. Plugging these values into the formula, we get P_total = 400 + (0.75^2 * 400) = 512 W. Therefore, the correct answer is 512 W.

Allo is the correct answer because it is a messaging app launched by Google for both Android and iOS platforms. It is similar to Whatsapp and Facebook Messenger in terms of functionality and features.

Based on the given information, we can determine that A's work rate is faster than B's because A can complete the work in 4 hours while B alone takes longer. Additionally, A and C together can complete the work faster than B and C together, suggesting that A's work rate is also faster than C's. Therefore, B's work rate is the slowest among the three. Since A and C together can complete the work in 2 hours, and A alone takes 4 hours, we can deduce that C alone takes 2 hours to complete the work. Thus, B's work rate is equal to C's work rate, so B alone will take 12 hours to complete the work.

In Laplace transform, multiplication by e-at in the time domain corresponds to translation by a in the s domain. This means that the function is shifted to the right by a units in the s domain. This translation represents the effect of multiplying the function by e-at in the time domain.

To change the meter from a 0-1000 μA range to a 0-100 mA range, a shunt resistance needs to be added in parallel to the meter. The shunt resistance diverts most of the current away from the meter, allowing it to measure higher currents. The shunt resistance value can be calculated using the formula Rshunt = (Rmeter/Irange) - Rmeter, where Rshunt is the shunt resistance, Rmeter is the resistance of the meter, and Irange is the desired range of the meter. In this case, Rmeter is given as 1000 Ω and Irange is 100 mA. Plugging in these values, we get Rshunt = (1000/0.1) - 1000 = 10 Ω. Therefore, the shunt resistance value is 10 Ω.

The correct answer is तिर: + कार. In this option, the word तिर: is correctly split into its constituent parts तिर and :. The word कार remains unchanged.

The correct answer is Patna Pirates. Patna Pirates emerged as the winners of the Pro Kabaddi League in 2016, which was the fourth season of the league. They showcased exceptional skills, teamwork, and strategy throughout the tournament, ultimately clinching the title. Their consistent performances and ability to outplay their opponents led them to victory in the league.

The correct answer is Nalanda Mahavihara. The question is asking which Indian properties were inscribed on the World Heritage List in 2016. Out of the given options, only Nalanda Mahavihara was inscribed on the list in that year.

The official languages of the United Nations are Arabic, Chinese, English, French, Russian, and Spanish. These languages were chosen based on several factors, including the number of speakers, their importance in international diplomacy, and their representation of different regions of the world. Arabic is one of the six official languages to ensure representation of the Arab world. Chinese is included due to China's significant global influence. English is widely spoken and serves as a lingua franca. French is an official language due to its historical importance in diplomacy. Russian represents the former Soviet Union and its influence. Spanish is included to represent the Latin American countries.

A savannah is a type of tropical grassland characterized by scattered trees and grasses. It is found in regions with warm temperatures and distinct wet and dry seasons, such as Africa, South America, and Australia. The other options, taiga, pampas, and prairies, are not tropical grasslands. The taiga is a coniferous forest found in cold regions, while the pampas and prairies are temperate grasslands found in South America and North America, respectively. Therefore, the correct answer is Savannah.

India's position in the Rio Olympics 2016 was 67th.

The H.C.F. (Highest Common Factor) of two numbers is the largest number that divides both numbers evenly. In this case, the H.C.F. is 23. The L.C.M. (Least Common Multiple) of two numbers is the smallest number that is a multiple of both numbers. The L.C.M. has two additional factors, 13 and 14. To find the larger of the two numbers, we can divide the L.C.M. by the H.C.F. and multiply it by the smaller number. Therefore, 23 multiplied by the smaller number gives us 322, which is the larger number.

Superconductivity is a property where the electrical resistance of a material becomes zero when it is cooled below a certain temperature called the critical temperature. This phenomenon allows for the flow of electric current without any energy loss or dissipation. In superconductors, the electrons pair up and move through the material with no resistance, resulting in a complete absence of electrical resistance. This property is not observed in other options such as semiconductivity, Curie point, or magnetostriction.

When a DC shunt generator is run as a motor, the speed decreases due to the additional load. In this case, the machine is delivering 20 A to the load at 220V as a generator, but when operated as a motor, it takes a line current of 20 A from a 220V supply. Since the load is the same, the motor will have a lower speed than the generator, which is 800 rpm. Therefore, the correct answer is less than 800 rpm.

The time constant of a first-order system is the time it takes for the system output to reach approximately 63.2% of its final value after a step input. In this case, the transfer function is G(s) = 10/(1+2s). The denominator of the transfer function is 1+2s, so the time constant can be found by setting 1+2s equal to 1/e (where e is the base of the natural logarithm). Solving for s gives s = -0.5. The time constant is then 1/|-0.5| = 2 seconds.

When a synchronous motor is running at synchronous speed, the rotor is locked in step with the rotating magnetic field produced by the stator. In this condition, the damper winding, which is responsible for starting the motor and bringing it into synchronism, does not produce any torque. This is because the rotor is not trying to catch up or fall behind the rotating magnetic field, so there is no need for the damper winding to exert any torque. Therefore, the correct answer is that the damper winding produces no torque.

The intrinsic impedance of a good conducting medium is given by √ωμ /σ ∠45°. This is because the intrinsic impedance is a complex quantity that represents the ratio of the electric field to the magnetic field in an electromagnetic wave propagating through the medium. In a good conducting medium, the conductivity (σ) is high, which means that the electric field is able to easily induce currents. The magnetic field (μ) and angular frequency (ω) are also factors in determining the intrinsic impedance. The angle of 45° represents the phase relationship between the electric and magnetic fields in the medium.

The area under a load curve represents the total energy consumed over a given period of time. This is because the load curve shows the variation in power demand over time, and the area under the curve represents the integral of power with respect to time, which gives the total energy consumed. Therefore, the correct answer is "energy consumed".

Bromine is a non-metal that remains liquid at room temperature. Unlike most non-metals, which are gases or solids, bromine has a melting point of -7.2 degrees Celsius and a boiling point of 58.8 degrees Celsius, making it the only non-metal that exists as a liquid under normal conditions. It is a reddish-brown liquid with a strong and unpleasant odor. Bromine is commonly used in the production of flame retardants, pesticides, and pharmaceuticals.

When the transformer operates at full-load and a lagging power factor, the voltage regulation will be more than 4.5%. This is because a lagging power factor causes an increase in the reactive power component, which leads to a higher voltage drop in the transformer. As a result, the output voltage will be lower than the rated voltage, resulting in a higher voltage regulation value. Therefore, the correct answer is more than 4.5%.

To achieve low PT error, the burden value should be low. This is because the burden value refers to the impedance or resistance connected to the current transformer (CT) secondary winding. A low burden value means that the connected load or equipment has a low impedance, allowing the CT to accurately measure the current flowing through it. A high burden value would result in a larger voltage drop across the burden, leading to errors in the CT's measurement. Therefore, to minimize PT error, a low burden value is required.

Thermal plants have high depreciation charges because they require significant investments in machinery and infrastructure, such as boilers, turbines, and generators. These assets have a limited lifespan and lose value over time due to wear and tear. Additionally, thermal plants often operate continuously, leading to higher depreciation expenses compared to other types of power plants that may have intermittent or seasonal operations. Therefore, the high depreciation charges in thermal plants are a result of the substantial initial investment and continuous operation, making them the correct answer.

When the primary winding of a transformer is energized from a different voltage and frequency supply than its rated values, the output voltage on the secondary winding will be affected. In this case, the primary winding is energized from a 110 V, 60 Hz supply instead of the rated 220 V, 50 Hz supply. The output voltage on the secondary winding will be proportional to the turns ratio of the transformer. Since the turns ratio is 220/6, the output voltage will be (110/220) * 6 = 3 V. Therefore, the correct answer is 3.0 V.

When an FM signal with a modulation index mf is passed through a frequency tripler, the resulting wave in the output will have a modulation index of 3mf. This is because the frequency tripler multiplies the frequency of the input signal by three. As a result, the variations in frequency caused by the modulation will also be multiplied by three, leading to a modulation index of 3mf in the output wave.

Impulse-reaction turbines are the correct answer because they combine both the principles of impulse and reaction to generate power. In these turbines, the steam first passes through a set of fixed nozzles, where it experiences an impulse and gains high velocity. Then, it enters a set of moving blades, where it undergoes a reaction and its kinetic energy is converted into useful work. This combination allows for improved efficiency and power output compared to impulse or reaction turbines alone.

The word "गरल" means "poison" in Hindi. The opposite or antonym of "poison" would be something that is pure or clean. Among the given options, "सुधा" is the word that means "pure" or "clean". Therefore, "सुधा" is the correct antonym for "गरल".

The equation ∇ . J′= 0 represents the continuity equation for steady currents. This equation states that the divergence of the current density vector is equal to zero, indicating that the amount of current flowing into a given region is equal to the amount flowing out of that region. This is a fundamental principle in electromagnetism that ensures the conservation of electric charge. Therefore, the correct answer is the continuity equation for steady currents.

According to the maximum power transfer theorem, for maximum power transfer to occur from a source to a load, the impedance of the load should be equal to the complex conjugate of the source impedance. In the case of an inductive load, the load impedance has a positive imaginary component. Therefore, to match this impedance, the source impedance should have a negative imaginary component, which can be achieved by using a capacitive source. Hence, the correct answer is capacitive.

When the motor is delivering rated output, the slip is given as 0.05. The slip is defined as the difference between the synchronous speed and the actual speed of the rotor divided by the synchronous speed. The synchronous speed of a 4-pole motor is given by 120*f/p, where f is the frequency of the supply voltage (50 Hz) and p is the number of poles (4). Therefore, the synchronous speed is 1500 rpm. The actual speed of the rotor can be found by subtracting the slip from the synchronous speed, which gives 1500 - (0.05 * 1500) = 1500 - 75 = 1425 rpm. This means that the speed of the rotor m.m.f. relative to the rotor structure is 75 rpm.

The instantaneous power in an inductor is proportional to the product of the instantaneous current and the rate of change of current. This is because an inductor stores energy in its magnetic field, and the power is related to the rate at which this energy is being transferred. The rate of change of current determines how quickly the magnetic field is changing, and the instantaneous current determines the amount of energy being transferred at that moment. Therefore, the product of these two quantities gives the instantaneous power in the inductor.

The roots of a quadratic equation in the form ax^2 + bx + c = 0 can be found using the quadratic formula. In this case, we are given that the roots are in the ratio of 2:3.

Let the roots be 2k and 3k.

Using the quadratic formula, we can equate the discriminant to zero to find the value of b.

The discriminant, b^2 - 4ac, is equal to (-5)^2 - 4(2)(b).

Simplifying this expression gives 25 - 8b.

Setting this equal to zero and solving for b gives b = 3.

The value of susceptibility in the case of vacuum is taken as zero because vacuum does not have any magnetic properties. It does not have any atoms or molecules to align their magnetic moments in response to an external magnetic field. Therefore, the susceptibility of vacuum is considered to be zero.

In a three-phase transformer, when the primary side is connected in a star configuration and the secondary side is connected in a delta configuration, the phase voltage on the delta side leads by 30°. This means that the voltage on the delta side is ahead of the voltage on the star side by 30° in terms of phase angle.

The conversion time of a dual-slope ADC is typically in the range of 100 to 200 ns. This type of ADC uses an integrator to measure the input voltage and then discharges the integrator over a fixed time period. The time it takes to discharge the integrator is directly proportional to the input voltage, allowing for accurate conversion. The range of 100 to 200 ns is a common conversion time for dual-slope ADCs and provides a balance between speed and accuracy.

Shunt capacitance is used for attenuating high frequencies because it provides a low impedance path for the high-frequency signals to bypass the circuit. It acts as a short circuit for high-frequency signals, allowing them to flow through it, while offering high impedance to low-frequency signals. This helps in reducing the amplitude of high-frequency signals and preventing them from interfering with the desired signals in the circuit.

The scale of a hot wire ammeter is non-linear because the deflection of the needle is not directly proportional to the current flowing through it. Instead, the scale is designed in such a way that it provides a more accurate reading for a wider range of current values. This non-linear scale allows for better precision and resolution in measuring current, especially at lower and higher values.

The power factor of a squirrel cage induction motor is low at light load only because at light load, the motor draws less current from the power supply, resulting in a lagging power factor. This is due to the fact that the motor operates at a lower efficiency at light load conditions, causing a decrease in the power factor. At heavy load, the motor operates at a higher efficiency, resulting in a higher power factor. At rated load, the power factor is typically optimized and closer to unity.

An economiser is a device used in boilers to recover heat from the flue gases and transfer it to the feed water. This helps in increasing the temperature of the feed water before it enters the boiler, reducing the amount of fuel required to heat the water. Therefore, the correct answer is feed water.

The numbers in the given sequence are all multiples of 11, except for 427. This makes 427 the odd one out as it does not follow the same pattern as the other numbers in the sequence.

The energy density spectrum of an energy signal represents the distribution of energy across different frequencies. In this case, the energy density spectrum is given as 10, 100, 50, and 20. The correct answer is 100, which means that the energy at a particular frequency is 100 units. This implies that the energy at this frequency is higher compared to the other frequencies mentioned in the spectrum.

The linear system is y[n] = x[n] + x[n - 10]. This is because it satisfies the properties of linearity, which include the superposition property (the output is the sum of the individual inputs) and the scaling property (scaling the input scales the output). The other options do not satisfy these properties, making y[n] = x[n] + x[n - 10] the only linear system among the given options.

The given question is asking for the Laplace transform of the function f(t) = A d(t - a), where d(t - a) is the Dirac delta function shifted by a units. The Laplace transform of the Dirac delta function is 1, so when it is shifted by a units, the Laplace transform becomes e^(-as). Since A is a constant, it can be factored out of the Laplace transform. Therefore, the correct answer is A e^(-as).

The size of the feeder is determined primarily by the current it is required to carry. This is because the current is directly related to the amount of power being transmitted through the feeder. A higher current would require a larger size feeder to accommodate the increased power flow and prevent overheating or voltage drop issues. Conversely, a lower current would require a smaller size feeder as less power is being transmitted. The percent variation of voltage, the voltage across the feeder, and the distance of transmission may also have an impact on the feeder size, but they are not the primary determining factors.

The regulation of a transmission line refers to the change in voltage that occurs as current flows through the line. In this case, the correct answer is R ⋉ 1/V, which means that the regulation is inversely proportional to the line voltage. This means that as the line voltage decreases, the regulation increases, and vice versa. This relationship makes sense because a higher line voltage would result in less voltage drop along the line, leading to less regulation. Conversely, a lower line voltage would result in more voltage drop and therefore more regulation.

The r.m.s. value of a sinusoidal waveform is equal to the peak value divided by the square root of 2. In this case, the peak to peak value is 100 V, so the peak value would be 50 V. Dividing 50 V by the square root of 2 gives us the r.m.s. value, which is approximately 35.36 V.

PMJAY stands for Pradhan Mantri Jan Aushadhi Yojana. It is a yojana formed by the Department of Pharmaceuticals to ensure the availability of generic medicines at affordable prices. This initiative aims to make quality generic medicines accessible to all sections of society, especially the economically weaker sections. Under this yojana, Jan Aushadhi Kendras are set up across the country to provide generic medicines at significantly lower prices compared to branded medicines. This helps in reducing the financial burden on individuals while ensuring the availability of essential medicines.

The correct answer is 74.04%. This means that according to the 2011 census, the literacy rate among Indians was 74.04%.

The correct answer is ∇ x B′ = 0. This answer is correct because the equation ∇ x B′ = 0 represents one of Maxwell's curl equations for a static magnetic field. This equation states that the curl of the magnetic field B' is equal to zero, indicating that there is no circulating magnetic field or magnetic field lines with a non-zero divergence. This implies that the magnetic field is conservative and can be described by a scalar potential.

VSB modulation is preferred in TV because it reduces the bandwidth requirement to half. This means that less bandwidth is needed to transmit the same amount of information, allowing for more efficient use of the available frequency spectrum. By reducing the bandwidth requirement, VSB modulation allows for more channels to be transmitted within a given frequency range, resulting in increased capacity and improved overall system performance.

The effect of lead resistance is important in the measurement of resistance of both the shunt and the ammeter. Lead resistance refers to the resistance of the connecting wires or leads used in the circuit. It can affect the accuracy of the measurements by introducing additional resistance into the circuit. In the case of shunt and ammeter, accurate measurement of their resistances is crucial for proper functioning and accurate readings. Therefore, considering the effect of lead resistance is important in order to ensure accurate measurement of both the shunt and ammeter resistances.

The Partition of Bengal in 1906 refers to the division of the Bengal province in British India into two separate entities - Bengal and Eastern Bengal and Assam. This division was carried out for administrative reasons and to weaken the growing nationalist movement in Bengal. However, the answer suggests that the Partition of Bengal in 1906 is not correctly matched, implying that it may not be accurately linked to the given year.

Ferrite cores have high resistance, which means they impede the flow of electric current. This high resistance reduces the formation of eddy currents, which are circulating currents that can cause energy loss in a core. In contrast, iron cores have lower resistance, allowing for the formation of eddy currents and resulting in higher eddy current losses. Therefore, ferrite cores are preferred in applications where minimizing energy loss is important, such as in transformers and inductors.

The correct answer is "y[n] = x[n] x[n - 1]". This is a time-invariant system because the output at any given time n only depends on the current and previous input values, x[n] and x[n-1], respectively. The output is not affected by any time shifts or delays in the input signal.

The great Victoria Desert is located in Australia. This is because the Victoria Desert is a large desert region that spans across Western Australia and South Australia. It is one of the largest deserts in Australia and is characterized by its arid climate and vast sand dunes. The desert is home to a diverse range of plant and animal species that have adapted to survive in this harsh environment.

The passage states that external beauty can be easily understood and expressed, but when beauty is combined with character, it also evokes a sense of pleasure. While a beautiful object may only satisfy the senses, a charming object also delights the mind. The passage further explains that the word "sundar" (beautiful) is limited, while "manohar" (charming) is more comprehensive and extensive. In literature, even ordinary objects can appear special and enchanting, which is why they are called "manohar." Therefore, based on this explanation, the correct answer is "इन्द्रियों की सन्तुष्टि के आधार पर" (based on satisfaction of the senses).

Service mains are the conductors that connect the consumer's terminals to the distribution. They are responsible for delivering electricity from the distribution network to individual consumers. Service mains play a crucial role in ensuring that electricity is distributed efficiently and safely to the consumers.