At a place the value of horizontal component of the earth's magnetic field H is . A metallic rod AB of length 2 m placed in east-west direction, having the end A towards east, falls vertically downward with a constant velocity of 50 m/s. Which end of the rod becomes positively charged and what is the value of induced potential difference between the two ends

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End A,

End A, 3 mV

End B,

End B, 3 mV

answer is B.

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Detailed Solution

Induced potential difference between two ends By Fleming's right-hand rule, end A becomes positively charged

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