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AC Fundamentals, Circuit and Circuit Theory

AC Fundamentals, Circuit and Circuit Theory
What will be the phase angle between two alternating waves of equal frequency, when one wave attains maximum value the other is at zero value?

180°
45°
90°
30°

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AC Fundamentals, Circuit and Circuit Theory
Form Factor is the ratio of

r.m.s. value/peak value
Average value/peak value
r.m.s. value/average value
Average value/r.m.s. value

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AC Fundamentals, Circuit and Circuit Theory
Capacitors for power factor correction are rated in

kVAR
kV
kVA
kW

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AC Fundamentals, Circuit and Circuit Theory
The input of an A.C. circuit having power factor of 0.8 lagging is 40 kVA The power drawn by the circuit is

36 kW
40 kW
80 kW
32 kW

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AC Fundamentals, Circuit and Circuit Theory
Magnitude of current at resonance in R-L-C circuit

Depends upon the magnitude of R, Land C
Depends upon the magnitude of R
Depends upon the magnitude of C
Depends upon the magnitude of L

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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

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

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MORE MCQ ON AC Fundamentals, Circuit and Circuit Theory

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