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The sensitivity of a galvanometer that m...

The sensitivity of a galvanometer that measures current is decreased by `1//40` times by using shunt ressitance of `10Omega`. Then, value of resistance of the galvanometer is

A

`400Omega`

B

`410Omega`

C

`30Omega`

D

`390Omega`

Text Solution

Verified by Experts

The correct Answer is:
D
`S=(G)/(n-1)`
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