Question

Two magnetic lines of force due to a bar magnet
A. Intersect at the neutral point
B. Intersect near the poles of the magnet
C. Intersect on the equatorial axis of the magnet
D. Do not intersect at all

Answer 1

Hint:
The magnetic lines of force points to the region where the force of the magnet can be detected. A bar magnet exhibits a magnetic field around it. These magnetic fields always have a specific direction at a particular point, as more than one direction is not possible at the same point.



Complete step by step solution:
We know that a compass needle is also known as a magnetic needle which means it can detect the presence of a magnetic field due to a bar magnet placed near the compass.
Let us consider a scenario when two magnetic field lines intersect each other at any point (say P).
Therefore, there will be two directions of the magnetic field at that point P which means a compass needle will point towards two directions at a single point which is practically not possible.
Thus, two magnetic lines of force due to a bar magnet do not intersect at all.
Hence, the correct option is (D) Do not intersect at all.




Therefore, the correct option is D.




Note:
Magnetic lines of force always originate from north poles and thus end at a south pole. Though Isolated north pole or south pole do not exist, isolated charges exist. There is no natural existence of magnetic monopoles.