The power in an AC circuit is given by P = Vrms Irms cos Φ. The value of the power factor cos Φ in series LCR circuit at resonance is-
A. zero
B. 1
C. \(\frac { 1 }{ 2 }\)
D. \(\frac { 1 }{ √2 }\)
Answer:B
The power in an AC circuit is given by P = Vrms Irms cos Φ. The value of the power factor cos Φ in series LCR circuit at resonance is-
A. zero B. 1 C. \(\frac { 1 }{ 2 }\) D. \(\frac { 1 }{ √2 }\)