The process of electron emission by the application of strong electric field at the surface of a metal is known as field emission
In this method, a strong electric field is applied at the metal surface which pulls the free electrons out of metal because of attraction of positive field. The stronger the electric field, the greater is the electron emission.
In this method, a strong electric field is applied at the metal surface which pulls the free electrons out of metal because of attraction of positive field. The stronger the electric field, the greater is the electron emission.
