Three very long parallel conductors are in free space. They lie in one plane spaced 50 cm. Each of the conductors carries a current of 100 amperes so that in the first and second the current has the same direction. What is the force acting a metre of the first, second (middle) and the third conductors?
Force due to second conductor, (Attractive)
(b) Force on Second Conductor:
(c) Force on Third Conductor:
Force due to first conductor, (Repulsive)