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The expression of apparent power (Papp) is?

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The expression of apparent power (Papp) is?

(a) VmIm

(b) VmIeff

(c) VeffIeff

(d) VeffIm

I have been asked this question in class test.

Query is from Apparent Power and Power Factor topic in section Power and Power Factor of Network Theory

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Correct choice is (c) VeffIeff

For explanation I would say: In case of sinusoidal voltage applied to the circuit, the product of voltage and the current is not the true power or average power and it is apparent power. The expression of apparent power (Papp) is Papp = VeffIeff.

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