Practicing Success
Practicing Success
CUET Preparation Today
The power factor of an RL circuit is $\frac{1}{2}$. If the frequency of a.c. is doubled, the power factor will be: |
$\frac{1}{\sqrt{5}}$ $\frac{1}{\sqrt{7}}$ $\frac{1}{\sqrt{3}}$ $\frac{1}{\sqrt{13}}$ |
$\frac{1}{\sqrt{13}}$ |
The correct answer is Option (4) → $\frac{1}{\sqrt{13}}$ |
