A coil of inductance $300\ mH$ and resistance $2\Omega$ is connected to a source of voltage $2V$. The current reaches half of its steady state value in

Question

Dr. Abubacker · Accepted Answer

(d) $i = i_{0}\left( 1 - e^{\frac{- Rt}{L}} ight) \Rightarrow$ For $i = \frac{i_{0}}{2},\ t = 0.693\frac{L}{R}$
$\Rightarrow t = 0.693 	imes \frac{300 	imes 10^{- 3}}{2} = 0.1\ sec$

Q. A coil of inductance $300\ mH$ and resistance $2\Omega$ is connected to a source of voltage $2V$. The current reaches half of its steady state value in

Explanation

Reviewed by Dr. Abubacker

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