For a series LCR circuit at reasonance , the statement which is not true is

Options

A. wattless current is zero
B. power factor is zero
C. peak energy stred by a capacitor = peak energy stored by an inductor
D. average power = apparemt power

Answer

B

Explanation

In a resonance L.C.R circuit in series , as `Lomega=1Comega`, impedance is purely resistive . The phase between the current and voltage is zero . Therefore power factor `cosphi=cos0^(@)=1`. Therefore statement b is wrong.