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Alternating Current question

2010 · Shift 0 · Q56

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JEE Main
Physics
Alternating Current
2010 · Shift 0 · Q56

Alternating Current question

2010 · Shift 0 · Q56

JEE MainPhysicsAlternating CurrentMCQ+4 / −1

In the circuit shown below, the key

K

is closed at

t=0.

The current through the battery is AIEEE 2010 Physics - Alternating Current Question 162 English

AIEEE 2010 Physics - Alternating Current Question 162 English

A
${{V{R_1}{R_2}} \over {\sqrt {R_1^2 + R_2^2} }}$ at $t=0$ and ${V \over {{R_2}}}$ at $t = \infty$
B
${V \over {{R_2}}}$ at $\,t = 0$ and ${{V\left( {{R_1} + {R_2}} \right)} \over {{R_1}{R_2}}}$ at $t = \infty$
C
${V \over {{R_2}}}$ at $\,t = 0$ and ${{V{R_1}{R_2}} \over {\sqrt {R_1^2 + R_2^2} }}$ at $t = \infty$
D
${{V\left( {{R_1} + {R_2}} \right)} \over {{R_1}{R_2}}}$ at $t=0$ and ${V \over {{R_2}}}$ at $t = \infty$

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