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JEE Main 2024 Physics question

PhysicsElectromagnetic InductionJEE Main 2024

A ceiling fan having 3 blades of length 80 cm each is rotating with an angular velocity of 1200 rpm. The magnetic field of earth in that region is 0.5 G and angle of dip is 30°. The emf induced across the blades is N π × 10⁻⁵ V. The value of N is .

Answer: 32

Solution

The vertical component of the field is = B sin30° = 0.25 × 10⁻⁴ T. The emf across a blade is ε

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Question ID VK-017044