'X' set up in the drum exert a torque on the drum to stop the train. Identify X.

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MCQs on faraday and henry experiments, magnetic flux, induction faradays law, lenz law, energy conservation, motional electromotive force, energy consideration quantitative study, eddy currents and inductance.


'X' set up in the drum exert a torque on the drum to stop the train. Identify X.