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Question

Taking the internal resistance of the battery as negligible, the steady state current in the 2Ω resistor shown in the figure will be
1127096_76da3b1d32fc462898069ac1f053560c.png

A
1.8 A
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B
2.9 A
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C
0.9 A
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D
2.8 A
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Solution

The correct option is C 0.9 A
At steady state capacitor act as open circuit therefore current will not flow in that circuit
Now 2 ohm and 3 ohm are in parallel then equivalent resistance is
RAB=2×32+3=65Ω
Total equivalent circuit is Req=65+2.8=4Ω
I=VR=64=32A
Voltage across AB is
V=32×65=1.8V
Current flowing through 2 ohm is,
I2=VR=1.82=0.9A
Option (C) is correct option

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