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Question

The ratio of initial to final current through the battery when the switch is closed in the figure.
873346_e135f0120a964c26b71267bd66a8aa31.png

A
Zero
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B
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C
43
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D
34
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Solution

The correct option is D 34
At t=0 , switch closed,
I1=E2R
At steady state after s closed
I2=E32R=2E3R
Ratio I1I2=34

958932_873346_ans_ee8a37f2db5e482798791ab80b24611f.png

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