A rectangular coil of a M,.C.G. of effective area `0.05 m^2` is suspended freely in a radical magnet field of induction `0.01 Wb

A rectangular coil of a M,.C.G. of effective area `0.05 m^2` is suspended freely in a radical magnet field of induction `0.01 Wb//m^2`. If the torsional constant of the suspension fibre is `5xx10^-9` Nm per degree. When a current of 300 `mu` A is passed through it, deflection of coil is
A. `15^@`
B. `30^@`
C. `45^@`
D. `60^@`

A rectangular coil of a M,.C.G. of effective area `0.05 m^2` is suspended freely in a radical magnet field of induction `0.01 Wb//m^2`. If the torsion

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