The distance between the wires of electric mains is `12 cm`. These wires experience `4mgwt` per unit length. The value of current flowing in each wire will be if they carry current in same direction

Derive an expression for the force acting per unit length of the wire in case of two long parallel wires carrying currents.

Calculate force per unit length acting on the wire B due to the current flowing in the wire A. (see figure below)

Calculate the force per unit length between two parallel long straight wires 2 cm apart in air, each carrying a current of 4 ampere.

Two long parallel straight wires, each carrying a current of 2 A are placed at distance of 3 cm. Calculate the force acting per unit length of each wire. Also, state the nature of force between the wires if the currents flow in the same direction in both the wires.

Two long parallel wires are separated by a distance of 2.50 cm . The force per unit length that each wire exerts on the other is 4.00xx10^-5 N/m , and the wires repel each other. The current in one wire is 0.600A . a. What is the current in the second wire ? b. Are the two currents in the same direction or in opposite direction?

Two long parallel wires are separated by a distance of 2.50 cm . The force per unit length that each wire exerts on the other is 4.00xx10^-5 N/m , and the wires repel each other. The current in one wire is 0.600A . a. What is the current in the second wire ? b. Are the two currents in the same direction or in opposite direction?

Force per unit length acting at one end of each of the two long parallel wires, carrying current I each, kept distance r apart is