It is driven by a motor, and the small gear drives the reduction gear transmission mechanism of the large gear, which then drives the motor to generate electricity. Demonstrates the principles of gear transmission and power generation in machinery. The process of converting electrical energy into mechanical energy, mechanical energy into electrical energy, and electrical energy into light. Principle of electric motor: An electric motor is a device that converts electrical energy into mechanical energy. When a motor receives electrical energy, it creates a magnetic field in the coils through current flow, which in turn interacts with a magnetic field generator (permanent magnet or electromagnet) to set the rotor in motion. Generator principle: A generator is a device that converts mechanical energy into electrical energy. When the rotor of the generator rotates at a certain speed, the conductor coil cuts with the magnetic field, generating an induced electromotive force. This induced electromotive force is transferred to an external circuit through a wire, and current begins to flow, thereby generating electrical energy. Principle of electric light: Electric light is a component that converts electrical energy into heat energy and light energy. The conversion principles of different electric lamps are different. Incandescent lamps emit light based on the principle of thermal radiation. Fluorescent lamps generate ultraviolet light through gas discharge, and then use phosphors to convert the ultraviolet light into visible light. LED is a semiconductor device that uses the recombination of electrons and holes to emit light.
