AC Fundamentals, Circuit and Circuit Theory
In a pure inductive circuit

The current leads the voltage by 90°
The current can lead or lag by 90°
The current is in phase with the voltage
The current lags behind the voltage by 90°

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AC Fundamentals, Circuit and Circuit Theory
A phasor is

A colored tag or band for distinction between different phases of a 3-phase supply
A line which represents the magnitude and phase of an alternating quantity
An instrument used for measuring phases of an unbalanced 3-phase load
A line representing the magnitude and direction of an alternating quantity

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AC Fundamentals, Circuit and Circuit Theory
In a R-L-C circuit

Exchange of power takes place between capacitor and supply line
Power is consumed in resistance and is equal to IR
All of the listed here
Exchange of power takes place between inductor and supply line

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