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Questions  >>  CBSE XII  >>  Physics  >>  Alternating current
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Can the instantaneous power output of an ac source ever he negative ? can the average power output be negative ?

$\begin{array}{1 1} \text{Yes, average power can be negative } \\ \text{No, average power can not be negative} \\ \text{ It can either be positive or negative} \\ \text{It can only be zero} \end{array} $

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