AC Fundamentals, Circuit and Circuit Theory
Pure inductive circuit

Takes power from the line during some part of the cycle and then returns back to it during other part of the cycle
Does not take power at all from a line
None of the listed here
Consumes some power on average

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

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

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AC Fundamentals, Circuit and Circuit Theory
The frequency of an alternating current is

The speed with which the alternator runs
The number of electrons passing through a point in one second
The number of waves passing through a point in one second
The number of cycles generated in one minute

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