17 A conducting rod with resistance r per unit length is

Last updated: 6/6/2023

17 A conducting rod with resistance r per unit length is moving inside a vertical magnetic field Bwith speed v on two smooth horizontal parallel ideal conducting rails The ends of the rails are connected to a resistor R the separation between the rails is d The rod maintains a tilted angle 0 to the rail Find the external force F required to keep the rod moving d a F c F V 0 B d v R dr B d v sine R dr sine B b F d F R B d v R dr sine B d v cos 0 R dr cos 0