(a) For circuits used for transporting electric power, a low power factor implies large power loss in transmission. Explain.
(b) Power factor can often be improved by the use of a capacitor of appropriate capacitance in the circuit. Explain.

Explanation

Yes. When the power factor is low, `I_(rms)` is large. Power is usually transmitted at fixed voltage. Hence power loss (large heat loss) `I_(rms)^(2)R` will be large.