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A moving coil galvanometer has a resista...

A moving coil galvanometer has a resistance of `990Omega.` in order to send only `10%` of the main currect through this galvanometer, the resistance of the required shunt is

A

`0.9Omega`

B

`100Omega`

C

`405Omega`

D

`90Omega`

Text Solution

Verified by Experts

The correct Answer is:
B
`I_g=0.1I,I_s=0.9I,S=l_gR_g//I_s`
`= 0.1 xx 900 //0.9 = 100Omega`
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