Electric motors – driving industrial machines (hammer presses, drilling machines, lathes, shapers, blowers for furnaces) and domestic appliances ( refrigerators, fans, water pumps, toys, mixers)
Generators – hydro-electric power plants, steam power plants, diesel power plants, nuclear power plants and in auto-mobiles
During conversion, whole of the energy in one form is not converted in the other useful form.
Most of the input power is converted into useful output power.
Some of the input power is converted into heat losses (\(I^R\)) which are due to the flow of current in the conductors, magnetic losses (hysteresis and eddy current losses) and friction losses.
A small portion of input power is stored in the magnetic field of electro-mechanical device.