Where is the pushing or pulling force of a magnet strongest?
middle of the magnet
edges of the magnet
same all the way along the magnet
only one end of the magnet
The pulling or pushing force of a magnet is strongest at the edges of the magnet. These 'edges' are also called the poles of a magnet.
A strong bar magnet is placed vertically above a horizontal wooden board. The magnetic lines of force will be:
(a) only in horizontal plane around the magnet
(b) only in vertical plane around the magnet
(c) in horizontal as well as in vertical planes around the magnet
(d) in all the planes around the magnet