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The deflection in a galvanometer decreas...

The deflection in a galvanometer decreases to 1/5th of the original deflectioon, if it is shunted by a resistance of `5 Omega.` The resistance of the galvanometer is

A

`1Omega`

B

`10Omega`

C

`15Omega`

D

`20Omega`

Text Solution

Verified by Experts

The correct Answer is:
D
`I/I_g=5=n therefore S=G/(n-1) therefore 5=G/(5-1)therefore G=20Omega`
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