Question

what are magnetic field lines? justify the following statement- (a) two magnetic fields never intersect each other? (b) magnetic field lines are close curved?

Answer 1

since magnetic field lines are formed from a pair of poles says( north and south poles ) and unlike electric field cannot produce by single pole thus they are always closed curved because ones after originating from a pole it has to end at other . and for the reason why they cant intersect because if they did they possess two vector at same time which is impossible for them or any other electromagnetic wave and field

Answer 2

Here is your answer.

A reason around a magnetic material or moving electric charge within which the force of magnetism acts.

A magnetic field is a vector field that describes the magnetic influence of electrical current and magnetic material.

I hope this helps you.