Q17 / 117 · NTA Abhyas (NEET) 2020 · Physics · Alternating Current

For a series $L - C - R$ circuit at resonance, the statement which is not true is

A
Peak energy stored by a capacitor = peak energy stored by an inductor
B
Average power = apparent power
C
Wattles current is zero
Correct answer
D
Power factor is zero

Solution

For a series L - C - R

circuit at resonance

Phase difference,

ϕ = 0 °

Power factor

= \cos ϕ = 1

Hence, the correct answer is option: 'D'.

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