Networks Analysis and Synthesis - Engineering

Q1:

In an RL series circuit the inductance is 1H and current at an instant is 0.6 A. The energy stored in magnetic field is

A 0.36 J

B 0.18 J

C 0.09 J

D 0.03 J

ANS:B - 0.18 J

Energy = 0.5 LI2 = 0.5 x 1 x 0.62 = 0.18 J.