If power factor is `1//2` in a series `RL,` circuit `R=100 Omega. AC` mains is used then `L` is

If the power factor is 1//2 in a series RL circuit with R = 100 Omega . If AC mains, 50 Hz is used then L is

If the power factor is 1//2 in a series RL circuit with R = 100 Omega . If AC mains, 50 Hz is used then L is

Power factor in a series R-L-C resonant circuit is

Power factor in a series R-L-C resonant circuit is

The power factor of a series L-C-R circuit at resonance

Assertion (A) If the frequency of the applied AC is doubled , then the power factor of a series R-L circuit decreases. Reason (R ) Power factor of series R-L circuit is given by costheta=(2R)/(sqrt(R^(2)+omega^(2)L^(2)))

Assertion (A) If the frequency of the applied AC is doubled , then the power factor of a series R-L circuit decreases. Reason (R ) Power factor of series R-L circuit is given by costheta=(2R)/(sqrt(R^(2)+omega^(2)L^(2)))

The power factor of L-R circuit is-

Phasor Diagrams impedence | Phase factor & power factor | Resonance in series LCR circuit | Parallel R-C | R-L | LCR circuits