define electric generator??
Answers
Answer:
An electricity generator is a device that converts motive power (mechanical energy) into electrical power for use in an external circuit. Sources of mechanical energy include steam turbines, gas turbines, water turbines, internal combustion engines, wind turbines and even hand cranks. Generators provide nearly all of the power for electric power grids.
Explanation:
The first electromagnetic generator, the Faraday disk, was invented in 1831 by British scientist Michael Faraday. The reverse conversion of electrical energy into mechanical energy is done by an electric motor, and motors and generators have many similarities. Many motors can be mechanically driven to generate electricity; frequently they make acceptable manual generators.
- "Electric generators, also known as dynamos is an electric machine that converts mechanical energy into electrical energy".
- The electric generator’s mechanical energy is usually provided by steam turbines, gas turbines, and wind turbines.
- Electrical generators provide nearly all the power that is required for electric power grids.
- The reverse conversion of electrical energy to mechanical energy is done by an electric motor.
- Both motors and generators have many similarities.
- "Generators do not create electricity instead it uses the mechanical energy supplied to it to force the movement of electric charges present in the wire of its windings through an external electric circuit".
- This flow of electrons constitutes the output electric current supplied by the generator.
- The modern-day generators work on the principle of electromagnetic induction discovered by Michael Faraday.
- He realized that the above flow of current can be created by moving an electrical conductor in a magnetic field.
- This movement creates a voltage difference between the two ends of the conductor which causes the electric charges to flow, hence generating electric current.