RL Circuits - Engineering

Q1:

Which of the following power factors results in less energy loss in an RL circuit?

A 1

B 0.8

C 0.4

D 0.2

ANS:D - 0.2

Power factor = true power/ apparent power.

Therefore power factor inversely proportional to apparent power.

Therefore to minimise apparent power which consists of reactive power that causes more loss, we have to decrease power factor.