Question

The close continuous ________ in a magnetic field is called a magnetic lines of force.

Answer 1

1. A magnetic field is defined as the curved lines of force surrounding a magnet, electric current, or changing electric field.
2. Magnetic lines of force are lines that depicts the magnetic force in the surrounding of the magnet.
3. It is a closed continuous curve in a magnetic field along which the north pole will move if free to do so, and its direction is given by the direction in which free north pole will point.

So, The close continuous curve in a magnetic field is called a magnetic lines of force.