A current of 10A passes through two very long wires held parallel to each other and separated by a distance of 1m. Wha is the force per unit length between them ?

Two long parallel copper wires carrying currents in the opposite directions of 5 A each. If the wires are separated by a distance of 0.5 m, then the force per unit length between the two wires is

The wires which connect the battery of an automobile to its starting motor carry a current of 300 A (for a short time). What is the force per unit length between the wires if they are 70 cm long and 1.5 cm apart ? Is the force attractive or repulsive ?

When two infinitely long parallel wires separated by a distance of 1 m, each carry a currentof 3 A, the force in Nm^(-1) length experienced by each will be given mu_(0)=4pixx10^(-7)Hm^(-1) SI units

Two particles each of mass 1kg are seperated by a distance of 1m in a gravitational field. The work done to increase the separation Between them to 2m is

Two charges 8 C and -6 C are placed at a distance of separation between them and exerts a force of magnitude F on each other. If a charge 8 C is added to each of these and they are brought nearer to by a distance d/3, the magnitude of force between them will be