Question

Power factor can often be improved by the use of a capacitor explain

Answer 1

Answer:

Power factor is cos theta = R/Z

$Z = \sqrt{R^{2} + (XL^{2} - XC^{2}  )}$

Our circuits are generally inductive. So we need to increas Xc by adding capacitive elements into circuit

so that Z becomes approx equal to R to make power factor close to 1