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JEE Main 2022 Physics question

PhysicsElectromagnetic InductionJEE Main 2022

In a coil of resistance 8 , the magnetic flux due to an external magnetic field varies with time as = (2/3)(9 − ). The value of total heat produced in the coil, till the flux becomes zero, will be J.

Answer: 2

Solution

The flux becomes zero at t = 3 s. The emf is = (4/3)t. The heat produced is \int$

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Question ID VK-025041