Topic: Electronics Engineering
For the circuit shown in figure, the switch is closed at $t=0$ After some time when the current in the inductor was 6 A, the rate of change of current through the inductor was 4 A/sec. The value of the inductor is
- A. 0.5 H
- B. 1.5 H
- C. 1.0 H
- D. Indeterminate
Answer: A. 0.5 H
Explanation: $V=Ri+L\frac{di}{dt}$
$20=3\times6+L\times4 \Rightarrow L=\frac{2}{4}=0.5~H$