AB and CD are fixed conducting smooth rails placed in a

Last updated: 6/26/2023

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 A The rod PQ may move downward with constant acceleration 2 The rod PQ may move upward with constant acceleration 3 The rod will move downward with decreasing acceleration and finally aquire a constant velocity 4 either A or B plo