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Question

Four cells each of emf 2 V and internal resistance 1 Ω are connected in parallel with an external resistance of 6 Ω. The current in the external resistance is

A
0.6 A
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B
0.2 A
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C
0.16 A
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D
0.32 A
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Solution

The correct option is D 0.32 A
Given, E=2 V ; r=1 Ω ; R=6 Ω

Current through the external resistance is,

I=ER+rn=26+14=26.25

I=0.32 A

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Hence, (D) is the correct answer.

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