How electromagnetic wire works in electrical appliances?

Electromagnetic wire: cutting the magnetic field line in the magnetic field to generate an induced current or a magnetic field through the current to realize the mutual conversion of electrical energy, magnetic energy and mechanical energy;
1. Convert mechanical energy into magnetic energy, and then into electrical energy: Generator, Electromagnet.
2. Convert electrical energy into mechanical energy: Motors, Relays.
3. Change the electric quantity and measure various electric energy: Transformer, Voltage Regulator, Ammeter, Voltage scale, Electricity Meter.