Question

State four properties of magnetic field lines.

Answer 1

In order to answer this question, first we will explain the magnet field lines and then we will write some properties of magnetic field lines and we will also explain the properties briefly. As we know the magnetic field is unique at any point in space.

Complete step by step solution:
Magnetic Field Lines are hypothetical lines along which the North Magnetic Pole might move. The magnetic field lines in a bar magnet resemble. These are lines that depict the direction and strength of magnetic force. These are curving lines that run from the magnet's north-pole to the south-pole.
Following are some properties of magnetic field lines:
(1) Magnetic field lines appear to emerge or begin at the north-pole, merging or terminating at the south-pole: The magnetic field lines inside the magnet travel from the south-pole to the north-pole. Magnetic field lines do not cross one another. A closed loop is formed by magnetic field lines.
(2) Magnetic field lines never intersect with each other: If magnetic field lines cross, there will be two directions of the same field at the crossing point, which is not conceivable. As a result, the field lines do not cross or intersect.
(3) At any location on the field, field lines have both direction and magnitude. As a result, a vector is used to represent magnetic field lines: As a result, a vector is used to represent magnetic field lines. They indicate the magnetic field's direction. Because the field lines are denser near the poles, the magnetic field is stronger.
(4) The magnetic field is stronger at the poles because the field lines are denser near the poles: A solenoid's magnetic field is determined by its core, turns, and current. The flux lines reject each other in a magnet, therefore the field is weaker on the sides. The field is stronger because they are concentrated at the poles, where they begin.

Note:
Magnetic field lines do not start or stop (mathematically, it is a solenoidal vector field); they can only extend to infinity, wrap around to create a closed curve, or continue a never-ending (potentially chaotic) route.