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The area of the coil in a moving coil ga...

The area of the coil in a moving coil galvanometer is `15cm^(2)` and has 20 turns. The magnetic induction is `0.2T` and the couple per unit twist of the suspended wire is `10^(-6) Nm` per degree. If the deflection is `45^(@)`, the current passing through it is

A

`75xx10^(-4)A`

B

`7.5xx10^(-4)A`

C

`0.75xx10^(-4)A`

D

`750xx10^(-4)A`

Text Solution

Verified by Experts

The correct Answer is:
1
`tau theta=BAIn`
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