Question

What are magnetic fields line? Justify the following statements:
Two magnetic field lines never intersect each other.
Magnetic field lines are closed curves.

Answer 1

magnetic field lines are the imagenery lines around the magnetic field.
if two magnetic lines intersect each other than compass needle reflected two direction which is not possible.
as magnetic lines move from north to south pole thus msgnetic field lines are close curve

Answer 2

Magnetic Field Lines : The path traced by a north magnetic pole free to move under the influence of a magnetic field is called magnetic field lines.

1. Inside the magnet, however the direction of magnetic field lines is from the South pole to the North pole of the magnet. Thus, the magnetic field lines are Closed Curves.

2.No two field-lines are found to cross each other. If they did, it would mean that at the point of intersection, the compass needle would point towards two directions, which is not posdible.