Physics-
General
Easy
Question
AB and CD are fixed conducting smooth rails placed in a vertical plane and joined by a constant current source at its upper end. PQ is a conducting rod which is free to slide on the rails. A horizontal uniform magnetic field exists in space as shown. If the rod PQ is released from rest then
- The rod PQ will move downward with constant acceleration
- The rod PQ will move upward with constant acceleration
- The rod will move downward with decreasing acceleration and finally acquire a constant velocity
- either A or B.
The correct answer is: either A or B.
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