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AC Fundamentals, Circuit and Circuit Theory

AC Fundamentals, Circuit and Circuit Theory
The product of apparent power and cosine of the phase angle between circuit voltage and current is

True power
Volt-amperes
Reactive power
Instantaneous power

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AC Fundamentals, Circuit and Circuit Theory
For a frequency of 200 Hz, the time period will be

0.005 s
0.0005 s
0.05 s
0.5 s

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AC Fundamentals, Circuit and Circuit Theory
In a loss-free R-L-C circuit the transient current is

Square wave
Oscillating
Sinusoidal
Non-oscillating

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AC Fundamentals, Circuit and Circuit Theory
In the case of an unsymmetrical alternating current the average value must always be taken over

The whole cycle
The half cycle
The quarter cycle
Unsymmetrical part of the wave form

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AC Fundamentals, Circuit and Circuit Theory
In a highly capacitive circuit the

Reactive power is more than the apparent power
Actual power is more than its reactive power
Apparent power is equal to the actual power
Reactive power is more than the actual power

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AC Fundamentals, Circuit and Circuit Theory
Time constant of a circuit is the time in seconds taken after the application of voltage to each

90% of the maximum value
63% of maximum value
25% of maximum value
50% of maximum value

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MORE MCQ ON AC Fundamentals, Circuit and Circuit Theory

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