The 'NEET Online Exam: Physics Quiz' tests understanding of electricity concepts, focusing on alternating and direct currents, voltage transformations, magnetic fields, and waveform analysis. It enhances foundational knowledge crucial for NEET aspirants.
The amount of current flow through the coil
The type of core material
The number of turns in the conductor
All of the above
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(a) Ac, (b) sine wave
(a) Dc, (b) continuous level
(a) Ac, (b) sawtooth
(a) Dc, (b) pulsating wave
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A magnetic field
A repulsive force
An attractive force
An electrostatic field
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Current versus time
Amplitude versus time
Voltage versus amplitude
Magnitude versus amplitude
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A circle
A sine curve
A square wave
A straight line
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45º
90º
180º
270º
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Average value
Effective value
Instantaneous value
Peak-to-peak value
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Ac can be transmitted with no line loss
Ac can be transmitted at higher current levels
Ac can be transmitted at lower voltage levels
Ac can be readily stepped up or down
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0.004 second
0.025 second
0.4 second
2.5 seconds
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Hysteresis loss
Magnetic loss
Field loss
Heat loss
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(a) Linked oblong (b) Parallel
(a) Concentric circles (b) Parallel
(a) Linked oblong (b) Perpendicular
(a) Concentric circles (b) Perpendicular
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6 Hz
16.67 Hz
600 Hz
1667 Hz
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(a) Frequency (b) period
(a) Period (b) wavelength
(a) Frequency (b) wavelength
(a) Wavelength (b) period
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50 volts
140 volts
156 volts
311 volts
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Period
Waveform
Frequency
Wavelength
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350 times
700 times
1400 times
2800 times
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Eavg
Emax
Eeff
Ein
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4.6 amperes
2.3 amperes
2.1 amperes
1.6 amperes
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(a) 32, (b) 16
(a) 16, (b) 8
(a) 8, (b) 4
(a) 4, (b) 2
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2.9 amperes
3.2 amperes
5.7 amperes
6.4 amperes
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Frequency
Polarity
Amplitude
Time
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(a) 0º , (b) 180º
(a) 0º , (b) 270º
(a) 90º , (b) 180º
(a) 90º , (b) 270º
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The peak value
The average value
The instantaneous value
The effective value
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Eavg = 0.707 × Emax
Eavg = 1.414 × Eeff
Eavg = 0.636 × Emax
Eavg = 0.226 × Eeff
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0 volts
38 volts
76 volts
128 volts
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Frequency
Polarity
Amplitude
Period
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Average value
Instantaneous value
Peak-to-peak value
Effective value
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Average
Effective
Peak
Peak-to-peak
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Iavg
Ieff
Iin
Imax
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Eavg
Emax
Eeff
Ein
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170 volts
120 volts
85 volts
76 volts
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Peak-to-peak value
Average value
Effective value
Instantaneous value
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Eeff = Emax/.636
Eeff = Emax/.707
Eeff = Emax × .707
Eeff = Emax × 1.414
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It is parallel to and equal along all parts of the conductor
It is parallel to and maximum at the most negative part of the conductor
It is perpendicular to and equal along all parts of the conductor
It is perpendicular to the conductor and maximum at the most negative point of the conductor
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8 volts
11 volts
15 volts
18 volts
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40 volts
20 volts
18 volts
9 volts
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(a) Current, (b) Magnetic flux, south to north
(a) Current, (b) Magnetic flux, north to south
(a) Magnetic flux, south to north, (b) Current
(a) Magnetic flux, north to south, (b) Current
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A
C
D
E
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0.8 amperes
0.9 amperes
1.7 amperes
1.9 amperes
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A resistor placed in parallel with the load
A resistor placed in series with the load
A step-down transformer placed in series with load
A step-down transformer placed in parallel-with the load
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Voltage potential
Magnetic field
Current flow
South pole
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(a) Minimum, (b) maximum
(a) Minimum, (b) minimum
(a) Maximum, (b) maximum
(a) Maximum, (b) minimum
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Amplitude and direction
Magnitude and phase
Amplitude and time
time and phase
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Always solve for resistance first
Give the answer as effective value
Never mix values
Convert all given values to effective before attempting to solve
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Because separate lines of magnetic force link and combine their effects
Because concentric lines of force cross at right angles and combine.
Because lines of force are separated and bent at the coil ends
Because separate lines of force are attracted to the two poles of the coi
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1 Hz
60 Hz
120 Hz
360 Hz
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9.3 amperes
14.6 amperes
17.5 amperes
22.5 amperes
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