A series L R circuit is connected to a voltage source with V t = V 0 sin ω t . After a very large time,…

A series

L R

circuit is connected to a voltage source with

V (t) = V_{0} \sin (ω t)

. After a very large time, current

I (t)

behaves as

(t_{0} ≫ \frac{L}{R})

:

Solution

When sinusoidal voltage is applied across $L R$ circuit, current is also sinusoidal but it lags by some phase.

Current will be in the form of
$I = I_{0} sin (ω t - ϕ)$
Graph will be sinusoidal.

Here $I_{0}$ is the maximum current and $ϕ$ is phase difference between $V & I$

Asked in: JEE Main 2016 (09 Apr Online)

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