A galvanometer coil of rectangular shape...

A galvanometer coil of rectangular shape of length 4 cm and width 2 cm contains 200 turns of insulated copper wire. It is suspected in a magnetic field of 0.005 T and the suspension produces a torque of `10^(-6)` Nm per unit twist. What steady current passing through the coil will produce deflection of `5^(@)`?

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The correct Answer is:

`1.09xx10^(-5)`

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