1. Bar magnet is the simplest form to explain magnetism. Bar magnets are permanent magnets and this means that they have magnetism all the time, it can’t be turned on and it can’t be switched off. They have two poles that include: north-seeking pole (N) and south-seeking pole (S). These poles appear to occur in equal and opposite pair. Magnetic meridian is the vertical plane in which the magnet lies. Magnets are made of materials that can be magnetized, which are also the ones that can be attracted to magnet, which are called ferromagnetic materials. These include: iron, steel, nickel, cobalt, some alloys of rare earth metals and some naturally occurring minerals such as lodestone. Mu-metal is a nickel based soft magnetic alloy,…show more content…Small bar magnets that are responsible for a magnetic behaviour are actually groups of atoms. Electron particles show magnetic behaviour of their motion – each electron has a magnetic moment. Groups of these atoms form small domains, in which the magnetic moments of the electrons are aligned with each other.
e Physics Of Bar Magnets - 2533 Words