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A 0.90-m steel bar is held with its length parallel to the east-west direction and dropped from a bridge. After it has fallen 32 m, the emf
Question
A 0.90-m steel bar is held with its length parallel to the east-west direction and dropped from a bridge. After it has fallen 32 m, the emf across its length is 9.2 x 10-4 V. Assuming the horizontal component of the earth’s magnetic field points directly north, what is the magnitude of the horizontal component of the earth’s magnetic field
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Physics
3 years
2021-09-04T21:43:21+00:00
2021-09-04T21:43:21+00:00 1 Answers
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Explanation:
From Faraday’s law,
Here, B is the magnetic field, l is the length of the rod, and v is the velocity of the rod.