A generator is a device that converts mechanical energy into electrical energy. It typically consists of a power source, such as an engine or turbine, connected to a rotating shaft. The rotating motion of the shaft induces a magnetic field in a coil of wire, which generates an electric current. This current can be used to power electrical devices, providing a portable and independent source of electricity. The symbols "🔋🔌💡" represent the key components of a generator: the battery (🔋) provides initial power, the plug (🔌) connects the generator to electrical devices, and the lightbulb (💡) symbolizes the output of electrical energy in the form of light.