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The deflection in a MCG is reduced from ...

The deflection in a MCG is reduced from 40 divisions to 10 divisions, when a shunt of` 10 Omega `is joined across it. What is the resistance of the galvanometer coil ?

A

`20 Omega`

B

`30 Omega`

C

`40 Omega`

D

`50 Omega`

Text Solution

Verified by Experts

The correct Answer is:
B
`I_g/I=theta_2/theta_1=10/40=S/(S+G) therefore G=30Omega`
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