Unlike electric field lines, magnetic field lines are continuous and always form closed loops.

a. True

b. False

True

Explanation:

Magnetic field refers to a region around a magnetic material or magnet, where a magnetic effect i felt. The magnetic lines of force are continuous lines that always travels from north to south pole and forms a closed loop. It is for these reason that magnetic poles exists as dipoles and not mono-poles. Electric field lines however travel from positive to negative and cannot return to the positive hence they do not form closed loops, They can only travel in just one direction.