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When the switch is closed, then initial current through 1 Ω resistor is (see figure)

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By Expert Faculty of Sri Chaitanya
a
12 A
b
4 A
c
10/7 A
d
3 A
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detailed solution

Correct option is B

Initially cement through the capacitor will be  maximumSo 6 Ω and 3 Ω are in parallel total  resistance6×39+1=3Ωi=123=4Ω


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