Question

In the following diagram, A and B represent two straight wires carrying equal currents in a

direction normal to plane of paper inwards.

a) Sketch separately the magnetic field lines produced by each current.

b) Give a reason why the magnetic field at K (mid-point of the line joining A and B) will be zero​

Answer 1

b) beg n eat! explanation

Explanation:

the magnetic field at K will be zero because the Direction of field lines coming from the points A and B are different they cancel each other and the net resultant at point K is zero