It seems incredible that a simple motor, from a few magnets, a coin, a battery, and a cable is so simple to make. It is so simple that you will be astonished of how little work there is to do. An experiment simple, with the material that anyone has at home and very instructive. Do the test and tell us what os has gone.
An electric motor is a machine that transforms the mechanical energy by means of electromagnetic interactions. There are some reversible motors that convert mechanical energy to electrical energy to operate as generators, and some very powerful gear motors such as k55. They are used in industrial installations, commercial and private individuals. They can operate through a network of electrical supply or batteries.