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MHT CET 2024 Physics question

PhysicsMoving Charges and MagnetismMHT CET 2024

The magnetic field at the centre of a current carrying circular coil of area 'A' is 'B'. The magnetic moment of the coil is ( = permeability of free space)

Answer: (C)

Solution

For a circular coil of radius and one turn, , so . The area is , so . Magnetic moment \frac{2BR}{μ_0}\frac{2BA}{μ_0}$Missing argument for \sqrt\sqrt{Missing argument for \frac\frac

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Question ID VK-092724