Which of the following statements is/are incorrect about capacitor?
Options:
(a) The current in a capacitive circuit is `i=i_m sin(omegat-pi/2)`. where, the amplitude of the oscillating current is `i_m =(V_m)/(omegaC)`.
(b) For a purely capacitive circuit `(1/(omegaC))`plays the role of resistance. It is called capacitive reactance and denoted by `X_c=1/(omegaC)`
(c) The current reaches its maximum value earlier than the voltage by one-fourth of a period.
(d) In case of a capacitor, the average power, `P_c=((i_mV_m)/2sin(2omegat))=0`
Since, `< sin(2omegat) > =0` over a complete cycle.