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AC Fundamentals, Circuit and Circuit Theory

AC Fundamentals, Circuit and Circuit Theory
The ratio of active power to apparent power is known as factor.

Power
Load
Form
Demand

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AC Fundamentals, Circuit and Circuit Theory
Which of the following waves has the highest value of peak factor ?

Square wave
Triangular wave
Half wave rectified sine wave
Sine wave

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AC Fundamentals, Circuit and Circuit Theory
In an AC. circuit, a low value of kVAR compared with kW indicates

High power factor
Unity power factor
Maximum load current
Low efficiency

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AC Fundamentals, Circuit and Circuit Theory
In a parallel R-C circuit, the current always _________the applied voltage.

Lags
None of the listed here
Remains in phase with
Leads

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AC Fundamentals, Circuit and Circuit Theory
The transient currents are associated with the

Applied voltage to the circuit
Resistance of the circuit
Changes in the stored energy in the inductors and capacitors
Impedance of the circuit

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AC Fundamentals, Circuit and Circuit Theory
A sine wave has a frequency of 50 Hz. Its angular frequency is __________ radian/second.

25 JT
5 n
100 n
50 jt

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