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Non-Ideal Battery

The value of ...

Question

The value of shunt resistance, in order to pass $10 %$ of the main current in the galvanometer of resistance $99 Ω$ , will be

A

9.9 Ω

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B

10 Ω

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C

11 Ω

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D

9 Ω

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Solution

The correct option is D $11 Ω$
$0.1 I \times 99 = 0.9 I \times R_{s}$
$\Rightarrow R_{s} = 11 Ω$

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