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If there is complex impedance in a circuit, part of energy is ____________ by reactive part and part of its energy is ____________ by the resistance.

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If there is complex impedance in a circuit, part of energy is ____________ by reactive part and part of its energy is ____________ by the resistance.

(a) alternately stored and returned, alternately stored and returned

(b) alternately stored and returned, dissipated

(c) dissipated, alternately stored and returned

(d) dissipated, dissipated

I had been asked this question in my homework.

The question is from Instantaneous Power topic in chapter Power and Power Factor of Network Theory

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Right option is (b) alternately stored and returned, dissipated

Easy explanation: If there is complex impedance in a circuit, part of energy is alternately stored and returned by reactive part and part of its energy is dissipated by the resistance. The amount of energy dissipated is determined by relative values of resistance and reactance.

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