Question

define magnetic field lines..... ​

Answer 1

Magnetic field lines are defined to have the direction that a small compass points when placed at a location. (a) If small compasses are used to map the magnetic field around a bar magnet, they will point in the directions shown: away from the north pole of the magnet, toward the south pole of the magnet.

Answer 2

Answer:

A magnetic field is a vector field that describes the magnetic influence on electric charges and magnetic materials of other moving charges or magnetized materials. A charge that is moving in a magnetic field experiences a force perpendicular to its own velocity and to the magnetic field.

Explanation:

Hope it will help you☺️