Instantaneous power is negative, when the polarities of voltage and current are of __________(a) opposite sign(b) same sign(c) voltage is zero(d) current is zeroI have been asked this question by my college professor while I was bunking the class.My question is taken from Instantaneous Power topic in division Power and Power Factor of Network Theory

Instantaneous power is negative, when the polarities of voltage and cu

1.	Instantaneous power is negative, when the polarities of voltage and current are of __________(a) opposite sign(b) same sign(c) voltage is zero(d) current is zeroI have been asked this question by my college professor while I was bunking the class.My question is taken from Instantaneous Power topic in division Power and Power Factor of Network Theory
Answer» Correct CHOICE is (a) opposite sign To explain: INSTANTANEOUS power is NEGATIVE, when voltage and CURRENT have opposite sign that is if voltage is POSITIVE, the current is negative and if current is positive, the voltage is negative.

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