A straight wire of length l can slide on two parallel plastic rails kept in a horizontal plane with a separation d. The coefficient of friction between the wire and the rails is `mu`. If the wire carries a current I, what minimum magnetic field should exist in the space in order to slide the wire on the rails.

A conductor (rod) of mass m, length l carrying a current i is subjected to a magnetic field of induction B. If the coefficients of friction between the conducting rod and rail is mu, find the value of I if the rod starts sliding.

A conductor (rod) of mass m, length l carrying a current i is subjected to a magnetic field of induction B. If the coefficients of friction between the conducting rod and rail is mu, find the value of I if the rod starts sliding.

Shows two long metal rails placed horizontally and parallel to each other at a separation i. A uniform magnetic field b exists in the vertically downward direction. A wire of mass m can slide on the rails. The rails are connected to a constant current source which drives a current I in the circuirt. The friction coefficient between the rails and the wire is mu . (a) What should be the minimum value of mu which can prevent the wire from sliding on the rails? (b) Describe the motion of the wire if the value of mu is half the value found in the previous part.

Shows two long metal rails placed horizontally and parallel to each other at a separation i. A uniform magnetic field b exists in the vertically downward direction. A wire of mass m can slide on the rails. The rails are connected to a constant current source which drives a current I in the circuirt. The friction coefficient between the rails and the wire is mu . (a) What should be the minimum value of mu which can prevent the wire from sliding on the rails? (b) Describe the motion of the wire if the value of mu is half the value found in the previous part.

Figure shows a wire of resistance R sliding on two parallel, conducting fixed thick rails placed at a separation l. A magnetic fild B exist in a direction perpendicular to the plane of the rails. The wire is moving with a constant velocity v. Find current through the wire

Figure shows a wire of resistance R sliding on two parallel, conducting fixed thick rails placed at a separation l. A magnetic fild B exist in a direction perpendicular to the plane of the rails. The wire is moving with a constant velocity v. Find current through the wire