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A moving coil galvanometer has N numbr o...

A moving coil galvanometer has `N` numbr of turns in a coil of effective area `A`, it carries a current `I`. The magnetic field `B` is radial. The torque acting on the coil is

A

`NA^(2)B^(2)I`

B

`NABI^(2)`

C

`N^(2)ABI`

D

NABI

Text Solution

Verified by Experts

The correct Answer is:
D
`tau=Mbsinthetaimpliestau_(max)=NiAB, (theta=90^(@))`
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