CUET Preparation Today
The power factor of an a.c. circuit having resistance r and inductance L connected in series to an a.c. source of angular frequency ω is |
$R/ωL$ $ωL/R$ $R/\sqrt{R^2+ω^2L^2}$ zero |
$R/\sqrt{R^2+ω^2L^2}$ |
$\text{Power Factor is } cos\phi = \frac{R}{Z} = \frac{R}{\sqrt{R^2 + X_L^2}} = \frac{R}{\sqrt{R^2 + \omega^2L^2}}$ |
