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4 posts in this encyclopedia categoryReinforce magnets
Magnets can be reinforced in different ways. For example, you can increase the number of magnets used and combine their magnetic fields into a stronger field.
Right-hand rule
The right-hand rule (or three-finger rule) is an aid that illustrates vectors within a three-dimensional coordinate system.
Ringmagnet
Ring magnets can be made of ferrite or neodymium or NdFeB (neodymium-iron-boron) and, like most magnets, have a nickel-plated coating to protect against oxidation.