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NEET 2008 Physics question

PhysicsElectromagnetic InductionNEET 2008

A circular disc of radius 0.2 meter is placed in a uniform magnetic field of induction in such a way that its axis makes an angle of with . The magnetic flux linked with the disc is

Answer: (2)

Solution

Magnetic flux , where is the angle between the field and the normal to the disc (its axis). , so \frac{1}{π}\cos$ 60°

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Question ID VK-089969