Voltage And Current Divider

2.

What is the unit for current?

Volts
Amperes
Ohms
Joules

Correct Answer

A. Amperes

Explanation

The unit for current is amperes. Amperes, symbolized by A, is the standard unit for measuring electric current. It represents the flow of electric charge in a circuit. Volts, ohms, and joules are units for voltage, resistance, and energy respectively, and are not used to measure current.

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3.

if you have R1=10kohm and R2=50kohmand the source of current is 10A,how can find each current of R1 and R2 ?

I1=8A, I2=6A
I1=1A, I2=3A
I1=8.3A, I2=1.6A
None of them

Correct Answer

A. I1=8.3A, I2=1.6A

Explanation

Based on the given values of resistance (R1=10kohm, R2=50kohm) and the source current (10A), we can use Ohm's Law (V=IR) to find the voltage across each resistor. The voltage across R1 can be calculated as V1=I*R1=10A*10kohm=100kV. Similarly, the voltage across R2 can be calculated as V2=I*R2=10A*50kohm=500kV. Since the current passing through each resistor is equal to the voltage across it divided by its resistance (I=V/R), we can find the currents as I1=V1/R1=100kV/10kohm=10A and I2=V2/R2=500kV/50kohm=10A. However, the given answer of I1=8.3A and I2=1.6A does not match the calculated values, so the correct answer is none of them.

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1

4.

What is the unit for resistance?

Volts
Amperes
Ohms
Joules

Correct Answer

A. Ohms

Explanation

The unit for resistance is ohms. Ohms is the standard unit of measurement for electrical resistance. It is named after the German physicist Georg Simon Ohm, who formulated Ohm's law, which relates the current flowing through a conductor to the voltage applied across it and the resistance of the conductor. The unit ohm is represented by the symbol Ω.

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5.

Which of these is the equation for current divider?

I2= (R1/R1+R2) * l
V = IR
R = IV
PE = mgh

Correct Answer

A. I2= (R1/R1+R2) * l

Explanation

The equation I2= (R1/R1+R2) * l represents the current divider formula. This formula is used to calculate the current flowing through a specific resistor (I2) when a current (l) is divided between two resistors (R1 and R2) connected in parallel. The formula takes into account the individual resistance values (R1 and R2) and the total resistance (R1+R2) to determine the proportion of current flowing through the second resistor (I2).

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1

6.

What is shown in this picture?

Resistors connected in parallel
Batteries connected in parallel
Resistors connected in series
Batteries connected in series

Correct Answer

A. Resistors connected in series

Explanation

The picture shows resistors connected in series. In a series circuit, the resistors are connected end to end, forming a single pathway for the current to flow. The current passing through each resistor is the same, and the total resistance of the circuit is the sum of the individual resistances.

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7.

In the picture, how resistance is connacted?

In series
In parallel
They are not connected

Correct Answer

A. In parallel

Explanation

The correct answer is "in parallel." In a parallel circuit, the resistors are connected side by side, allowing multiple paths for the current to flow. This means that the total resistance of the circuit decreases, as the current can divide and flow through each resistor independently. Therefore, in this picture, the resistors are connected in parallel, providing multiple paths for the current to pass through.

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8.

In the picture, calculate R2 and R3 to be one resistance,also the voltage of R23?

17.5kohm , 3,5V
17.5kohm , 7,5V
None of them

Correct Answer

A. 17.5kohm , 3,5V

9.

How can measurment the voltage divider in the circuit?

Series
Parallel
None of them

Correct Answer

A. Series

Explanation

The correct answer is "series." In a voltage divider circuit, the resistors are connected in series. This means that the current flowing through both resistors is the same, and the voltage across each resistor is proportional to its resistance. By measuring the voltage across each resistor, we can determine the voltage drop across the entire circuit and calculate the output voltage.

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10.

In this circuit diagram, what are R1, R2, and R3? - ProProfs

In this circuit diagram, what are R₁, R₂, and R₃?

Batteries connected in series
Batteries connected in parallel
Resistors connected in series
Resistors connected in parallel

Correct Answer

A. Resistors connected in parallel

Explanation

The correct answer is resistors connected in parallel. In a parallel circuit, the resistors are connected in such a way that the current has multiple paths to flow through. This means that the voltage across each resistor is the same, while the total current is divided among the resistors. This configuration is commonly used when the goal is to decrease the overall resistance in a circuit.

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11.

What is current?

The flow of charges, usually in the form of electrons
The newness of a battery or resistor
Something that blocks or slows the flow of electrons
The potential energy stored in a battery

Correct Answer

A. The flow of charges, usually in the form of electrons

Explanation

Current is defined as the flow of charges, usually in the form of electrons. It represents the movement of electric charge through a conductor, such as a wire. The flow of charges creates an electric current, which is measured in amperes (A). This flow of charges is what allows electrical devices to operate and for electricity to be transmitted from one place to another.

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Voltage And Current Divider

What is the unit for voltage?

Quiz Preview

What is the unit for current?

if you have R1=10kohm and R2=50kohmand the source of current is 10A,how can find each current of R1 and R2 ?

What is the unit for resistance?

Which of these is the equation for current divider?

What is shown in this picture?

In the picture, how resistance is connacted?

In the picture, calculate R2 and R3 to be one resistance,also the voltage of R23?

How can measurment the voltage divider in the circuit?

In this circuit diagram, what are R₁, R₂, and R₃?

What is current?

Voltage And Current Divider

What is the unit for voltage?

Quiz Preview

What is the unit for current?

if you have R1=10kohm and R2=50kohmand the source of current is 10A,how can find each current of R1 and R2 ?

What is the unit for resistance?

Which of these is the equation for current divider?

What is shown in this picture?

In the picture, how resistance is connacted?

In the picture, calculate R2 and R3 to be one resistance,also the voltage of R23?

How can measurment the voltage divider in the circuit?

In this circuit diagram, what are R1, R2, and R3?

What is current?

In this circuit diagram, what are R₁, R₂, and R₃?