Signals and Systems - Engineering

Q1:

An ac network has a power factor of 0.8 leading if the applied wave is of fundamental frequency. If the applied wave contains third and fifth harmonics, the overall power factor will be

A 0.8 leading

B less than 0.8 leading

C more than 0.8 leading

D 0.8 leading or more

ANS:C - more than 0.8 leading

As frequency increases, XC decreases and power factor improves.