Question

State whether true or false :
When a steady state DC current will flow through the inductor, the inductor will acts as a short circuit equal to a piece of wire.

• A. True
• B. False

Answer 1

The correct option is A True

DC voltage across inductor is,

$V_L=L\frac{di}{dt}$ where $L$=inductance of coil

at $t\to \infty$, $\frac{di}{dt}$=0 as $i$ is constant.

$V_L=0$.

Hence, voltage across inductor is zero therefore inductor act as short circuit piece of wire.