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KEAM 2020 Physics and Chemistry Solved Paper

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Question : 36

Total: 120

A train is running at a speed of 72‌km‌hr−1 on the rails separated by a distance of 150‌cm. If the vertical component of earth's magnetic field at the place is 4.0×10−5 T. The induced emf on the rails is

1.2‌mV
3‌mV
2.5‌mV
0.5‌mV
4.2‌mV

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