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Motional EMF related question A metallic rod is held horizontally along east-west direction, is allowed to fall under gravity. Will there be an EMF induced at its ends? Justify your answer. My answer - The magnetic field of Earth is constant and hence there is no magnetic flux change and hence no EMF. Friend's answer - The free electrons on the rod experience a force due to magn. field given by F=qvXB Hence electrons move to one side and EMF is induced. Please tell me which answer is correct. |
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