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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?

45°
180°
90°
30°

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

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

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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

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

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

Sinusoidal
Square wave
Oscillating
Non-oscillating

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AC Fundamentals, Circuit and Circuit Theory
Power factor of the following circuit will be zero

Both of the listed here
Capacitance
Resistance
Inductance

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AC Fundamentals, Circuit and Circuit Theory
Power factor of the following circuit will be unity

Capacitance
Resistance
Inductance
None of the listed here

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