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Power in an AC Circuit

What is the a...

Question

What is the average power dissipation in an ideal capacitor in AC circuit ?

A

2 C V^{2}

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B

\frac{1}{2} C V^{2}

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C

Z e r o

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D

C V^{2}

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Solution

The correct option is C $Z e r o$
Average power in AC circuits is given by $P = V_{r m s} I_{r m s} c o s ϕ$ for pure capacitive circuit $ϕ = 90^{o}$ so, P = 0.

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