If field lines of a magnetic field are crossed at a point, what does it indicate ?

What Are Magnetic Field Lines?

Magnetic field lines are imaginary lines used to show the direction and strength of a magnetic field. They help us visualize how the magnetic force behaves around a magnet.

• They go from the north pole to the south pole outside the magnet.
• The closer the lines are, the stronger the magnetic field.
• A compass needle placed in the field lines will point along the direction of the field.

What Happens if Field Lines Cross?

If two magnetic field lines crossed at a point, it would mean that at that point:

• The magnetic field has two different directions at the same time.
• But this is not physically possible.
• A magnetic field at any given point can only have one unique direction.

Why Magnetic Field Lines Never Cross

• Field lines represent the path a compass needle would follow.
• A compass needle always points in just one direction.
• So, only one field line can pass through a point — otherwise the compass would be confused and try to point in two directions, which it can't do.