AC Fundamentals, Circuit and Circuit Theory
A phasor is

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

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

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

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AC Fundamentals, Circuit and Circuit Theory
Capacitive reactance is more when

Capacitance is less and frequency of supply is more
Capacitance is less and frequency of supply is less
Capacitance is more and frequency of supply is more
Capacitance is more and frequency of supply is less

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