The power factor of an a.c. circuit is ……… .

The power factor of an a.c. circuit having resistance R and indctace L (connected in series) and an angular velocity omega

Under what conditions, power factor of an a.c. circuit is maximum ?

What do you mean by power factor of an a.c. circuit ?

Average power of an a.c. circuit is:

The power factor of a LR circuit is 1/sqrt3 . IF the frequency of ac be doubled, what will be the power factor?