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MHT CET Physics question

PhysicsMoving Charges and MagnetismMHT CET

A rectangular coil has 100 turns each of area 50 cm. It is capable of rotation about an axis joining the mid points of two opposite sides. When a current of 5 A is passed through it while its plane at right angles to a uniform magnetic field, it experiences a torque of 5 Nm. The magnetic field will be

Answer: (B)

Solution

(maximum torque) gives \frac{5}{100×5×50×10^{-4}}$ =

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Question ID VK-078628