The magnetic field lines:(a) intersect at right angles to one another (b) intersect at an angle of 45° to each other (c) do not cross one another (d) cross at an angle of 60° to one another

(c) do not cross one another

Explanation

The magnetic field lines do not cross one another because the resultant force on a north pole at any point can only be in one direction. But if the two magnetic field lines cross or intersect each other, then the force on a north pole placed at a point of intersection will be along with two directions, which is impossible.

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