Question

Why magnetic field line does not intersect to each other..?

Answer 1

THE two magnetic field lines can never intersect each other because two tangents can be drawn from that point of intersection which will give two directions of the field from the same point,which is impossible.So, the two magnetic field lines can never intersect each other.

Answer 2

it's because two tangent can be drawn from that point of intersection which will give two direction of the fields from the same point.

that's why two magnetic field line can never intersect each other.

hope you understand!!!