AC Fundamentals, Circuit and Circuit Theory
The phase difference between voltage and current wave through a circuit element is given as 30°. The essential condition is that

Both waves must have zero value at the same time
Both waves must have identical peak values
Both waves must have same frequency
None of the listed here

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AC Fundamentals, Circuit and Circuit Theory
Time constant of an inductive circuit

Increases with increase of inductance and decrease of resistance
Increases with the increase of inductance and the increase of resistance
Increases with the decrease of inductance and decrease of resistance
Increases with decrease of inductance and increase of resistance

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AC Fundamentals, Circuit and Circuit Theory
Capacitive susceptance is a measure of

A purely capacitive circuit's ability to pass current
The extent of neutralization of reactive power in a circuit
A purely capacitive circuit's ability to resist the flow of current
Reactive power in a circuit

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