In the given figure two straight infinite conductors carry a current 1. They are parallel and separated by a distance 2a. A circular conducting ring of radius 'a' in the plane of the parallel wires lies between the two straight conductors and is insulated from them. The mutual inductance between the circular ring and the straight conductors is 2a

The graph of force per unit legth between two long parallel current carrying conductors and the reciprocal of the distance between them is

A long straight conductor carrying current I_1 is placed in the plane of a ribbon carrying current I_2 parallel to the previous one. The width of the ribbon is b and the straight conductor is at a distance a from the near endge. Find the force of attraction between the two.

There is one long straight conductor carrying current which is kept along the dimaeter of a circular loop without touching it.

A long straight conductor carrying a current lies along the axis of a ring. The conductor will exert a force on the ring if the ring

A current of 1//(4pi) ampere is flowing in a long straight conductor. The line integral of magnetic induction around a closed path enclosing the current carrying conductor is

Two long straight parallel conductors separated by a distance of 0.5m carry currents of 5A and 8A in the same direction. The force per unit length experienced by each other is

Define SI unit of current in terms of the force between two parallel current carrying conductors. (b) Two long straight parallel conductors carrying steady currents I_(a)andI_(b) along the same direction are separated by a distance d. How does one explain the force of attraction between them ? If a third conductor carrying a current I_(c) in the opposite direction is placed just in the middle of these conductors , find the resultant force acting on the third conductor.

Two long straight parallel conductors of length l ,separated by a distance d and each carrying a current I attract each other with a force equal to

Three very long straight conductors are arranged parallel to each other in a plane and have resistances in the ration 1:2:3 . They are connected in parallel to a battery of negligible internal resistance such that the currents in all three wires are in the same direction. The distance between the first two conductors is x and the distance between the second and third conductors is y . If the middle conductors is in equilibrium, the ratio x:y is