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MHT CET Physics question

PhysicsMoving Charges and MagnetismMHT CET

A rectangular coil of a M.C.G. of effective area is suspended freely in a radial magnetic field of induction . If the torsional constant of the suspension fibre is Nm per degree. When a current of 300 A is passed through it, deflection of coil is

Answer: (B)

Solution

\dfrac{(nA)IB}{k}\dfrac{0.05×300×10^{-6}×0.01}{5×10^{-9}}$=30^

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Question ID VK-078356