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Physics
For a series LCR circuit at resonance, the statement which is not true is
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Q. For a series $LCR$ circuit at resonance, the statement which is not true is
KCET
KCET 2008
Alternating Current
A
Peak energy stored by a capacitor = peak energy stored by an inductor
16%
B
Average power = apparent power
17%
C
Wattless current is zero
21%
D
Power factor is zero
46%
Solution:
For a series $L C R$ circuit at resonance
Phase difference, $\phi=0^{\circ}$
Power factor $=\cos \phi=1$