MCQ
The average power dissipation in a pure capacitance in ac circuit is
  • A
    $\frac{1}{2}C{V^2}$
  • B
    $C{V^2}$
  • C
    $\frac{1}{4}C{V^2}$
  • Zero

Answer

Correct option: D.
Zero
d
(d) Average power in ac circuits is given by $P = {V_{rms}}{i_{rms}}\cos \phi $ 
For pure capacitive circuit $\phi = {90^o}$ so $P = 0$

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