# In the figure ab and cd are two long conducting wires kept

Last updated: 6/25/2023

In the figure ab and cd are two long conducting wires kept parallel to each other at a separation I in a uniform time varying magnetic field The ends a and c are connected together by a resistor of resistance R The magnetic induction B perpendicular to the plane of the wires varies with time according to the relation B Bot where B is a positive constant with proper unit and t is the time in second A conducting wire PQ placed on the wires ab and cd and dragged on the wire with constant speed v along the length of the wires by applying a constant force F At t 0 PQ is very close to ac Ignore any resistance electrical as well as mechanical other than R Find the value of FR 250 R 1 y X X RX X X a www X X X X X X X X O X X X X F X X