In figure, a long wire AB is placed on a table. A wire CD `10cm` long, is just above AB. It can slide up and down on two vertical wires. If the wires carry a current of `20A`, then how much above AB, will the wire CD settle? The mass of the wire CD is `0*50` gram.

A long wire AB is placed on a table. Another wire PQ of mass 1.0 g and length 50cm is set to slide on two rails PS and QR . A current of 50 A is passed through the wires. At what distance above AB , will the wire PQ be in equilibrium?

A long wire AB is placed on a table. Another wire PQ of mass 1.0 g and length 50cm is set to slide on two rails PS and QR . A current of 50 A is passed through the wires. At what distance above AB , will the wire PQ be in equilibrium?

A current I_(1) carrying wire AB is placed near another long wire CD carrying current I_(2) . If wire AB is free to move, it will have

A current I_(1) carrying wire AB is placed near another long wire CD carrying current I_(2) . If wire AB is free to move, it will have

A long, horizontal wire AB rests on the surface of a table and carries a current I. Horizontal wire CD is vertically above wire AB, and is free to slide up and down on the two vetical mental guides C and D (as shown in Fig) Wire CD is connected through the sliding contacts to another wire that also carries a current I, opposite in direction to the current in wire AB. The mass per unit length of the wire CD is lambda . To what euqilibrium heigth h will the wire CD rise, assuming that magnetic force on it is wholly due to the current in wire AB?

A long, horizontal wire AB rests on the surface of a table and carries a current I. Horizontal wire CD is vertically above wire AB, and is free to slide up and down on the two vetical mental guides C and D (as shown in Fig) Wire CD is connected through the sliding contacts to another wire that also carries a current I, opposite in direction to the current in wire AB. The mass per unit length of the wire CD is lambda . To what euqilibrium heigth h will the wire CD rise, assuming that magnetic force on it is wholly due to the current in wire AB?

A straight long wire carrying current 50 A is placed on a horizontal surface. Another wire of unit length carrying 22 A current is balanced in air above at a distance of 0.5 cm from the long wire. Calculate the mass of the wire.

A straight wire 5m long is placed parallel to an infinitely long straight wire carrying current 5A. The distance between the two wires is 10 cm and the 5m long wire is carrying current 2A. The force on the shorter wire is :

Three long straight and parallel wires carrying currents are arranged as shown in the figure. The wire C which carreis a current of 5.0 amp is so placed that it experiences no force. The distance of wire C from D is then