Assertion: Average value of `AC` over a complete cycle is always zero. Reason: Average value of `AC` is always defined over half cycle.A. If both assertion ans reason are true ans reaason is the correct explanation of assertion.B. If both assertion and reason are true but reason is not the correct explanation of assertion.C. If assertion istrue but reason is false.D. If both assertion and reason are false.

Assertion: Average value of `AC` over a complete cycle is always zero.

1.	Assertion: Average value of `AC` over a complete cycle is always zero. Reason: Average value of `AC` is always defined over half cycle.A. If both assertion ans reason are true ans reaason is the correct explanation of assertion.B. If both assertion and reason are true but reason is not the correct explanation of assertion.C. If assertion istrue but reason is false.D. If both assertion and reason are false.
Answer» Correct Answer - B The mean or average value of alternating current or e.m.f. during a half cycle is given by `I_(m)=0.636 I_(0)` or `E_(m) = 0.636 E_(0)` During the next half cycle, the mean value of ac will be equal in magnitude but opposite in direction. For this reason the average value of ac over a complete cycle is always zero. So the average value is always defined over a half cycle of ac.

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