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Alternating Current question

2009 · Shift 0 · Q54

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JEE Main
Physics
Alternating Current
2009 · Shift 0 · Q54

Alternating Current question

2009 · Shift 0 · Q54

JEE MainPhysicsAlternating CurrentMCQ+4 / −1

An inductor of inductance

L=400mH

and resistors of resistance

{R_1} = 2\Omega

and

{R_2} = 2\Omega

are connected to a battery of

emf12V

as shown in the figure. The internal resistance of the battery is negligible. The switch

S

is closed at

t=0.

The potential drop across

L

as a function of time is : AIEEE 2009 Physics - Alternating Current Question 163 English

AIEEE 2009 Physics - Alternating Current Question 163 English

A
${{12} \over t}{e^{ - 3t}}V$
B
$6\left( {1 - {e^{ - t/0.2}}} \right)V$
C
$12{e^{ - 5t}}V$
D
$6{e^{ - 5t}}V$

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