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Motional EMF in an Open Conductor

A player with...

Question

A player with 3 m long iron rod is running towards east with a speed of 30 km/hr. Horizontal component of earth's magnetic field is $4$ x $10^{- 5} W b / m^{2}$ . If he is running with rod in horizontal and vertical positions, then the potential difference induced across the ends of the rod in each of the cases would be

A

Zero in vertical position and in horizontal position

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B

in vertical position and zero is horizontal position

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C

Zero in both cases

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D

in both cases

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Solution

The correct option is B
in vertical position and zero is horizontal position

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Q. An athlete with 3m long iron rod in hand runs towards east with a speed of 30 kmph. The horizontal component of earth's magnetic field is

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