Question

(i) Two magnetic field lines do not intersect each other. Why?
(ii) How is a uniform magnetic field in a given region represented?
Draw a diagram in support of your answer.

Answer 1

Part (i):
Magnetic field lines do not intersect because intersection would imply multiple directions for the magnetic field at a single point, which is impossible. Magnetic field lines visually represent the direction of the magnetic force, and each point in space has a singular magnetic field direction. Thus, intersecting lines would violate this fundamental principle.

Part (ii):
A uniform magnetic field is depicted by magnetic field lines that are parallel and uniformly spaced. This visual representation signifies that the magnetic field's strength and direction are constant across the specified region. Such uniformity is observed in fields generated between bar magnet poles or within a solenoid.