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What does a phasor represent?

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in Physics – Class 12 by (135k points)
What does a phasor represent?

(a) Current and resistance

(b) Current and voltage

(c) Voltage and resistance

(d) Voltage and power

The question was asked in semester exam.

Question is taken from Representation of AC Current and Voltage by Rotating Vectors in section Alternating Current of Physics – Class 12

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Correct answer is (b) Current and voltage

For explanation I would say: Phasors represent alternating current and voltage of same frequency as vectors in a phasor diagram with the phase angle between them. Phasors can also be applied to impedance as well as other related complex quantities that are not dependent on time.

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