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A metal rod mvoess at a constant velocit...

A metal rod mvoess at a constant velocity in a direction perpendicular to its length . A constant uniform magnetic field exists in space in a direction perpendicular to the rod as well as it velocity. Select the correct statement from the following

A

(a) The entire rod is at the same electric potential

B

(b) There is an electric field in the rod

C

( c) The electric potential is highest at the center of rod and decrease toward its ends

D

( d) The electric potential is lowest at the center of rod and increase toward its ends

Text Solution

Verified by Experts

The correct Answer is:
B
A motional emf, `e = Blv`, is induced in the rod. Or we can say a potential difference is induced between the two ends of the rod. Due to this potential difference, there is an electric field in the rod.
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