Two long parallel straight wires P& Q separated by a distance 5 cm in air carry currents of 4A and 2A respectively in same direction. Find the magnitude of the force acting per cm of the wire P and indicted the direction of the force.

Two long parallel straight wires P and Q separated by a distance 5cm in air carry currents of 4A and 2A respectively in same direction. Find the magnitude of the force acting per cm of the wire P and indicate the direction of the force.

Two long parallel straight wires X and Y, separated by a distance of 2.5 cm in air, carry currents of 5 A and 2.5 A respectively in opposite directions. Calculate the magnitude and direction of the force on a 10 cm length of the wire Y.

Two long parallel wires separated by 0.1 m carry currents of 1A and 2A respectively in opposite directions. A third current-carrying wire parallel to both of them is placed in the same plane such that it feels no net magnetic force. It is placed at a distance of

Two long parallel wiress separated by 0.1 m carry currents of 1 A and 2 A respectively in opposite directions. A third current-carrying wire parallel to both of them is placed in the same plane such that it feels no net magnetic force it is placed at a distance of

A long wire carries a current of 90 A in the east to west direction. What is the magnitude and direction of magnetic field due to the current I.5m below the line?

Two long and parallel stright A and B carrying currents of 8.0A and 5.0A in the same direction are separted by a distance of 4.0cm . Estimate the force on a 10 cm section of wire A.

Two long parallel conductors, kept at a dsitance d, carry currents I_(1) and I_(2) respectively. The mutual force acting between them is F. now the current in one is doubled and its direction is also reversed. If the distance of seperation between them is made 3d, what will be the force acting between the two conductors ?