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the deflection in a moving coil galvenom...

the deflection in a moving coil galvenometre falls from `50` divisions to `10` divisions when a shunt of `12 Omega` is applied. What is the resistance of the galvenometre? Assume the main current to remain same.

A

`12 Omega`

B

`24 Omega`

C

`48 Omega`

D

`50Omega`

Text Solution

Verified by Experts

The correct Answer is:
C
`I=(K)/(n AB)theta`
`therefore theta = (n ABI)/(K)=(1xx0.05xx0.01xx300xx10^-6)/(5xx10^-9)`
`=30^@`.
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