ELECTRONICS 1 EEC 124

LECTURE 1.0

TOPIC: THE CONCEPT OF THERMIONIC EMISSION

Thermionic emission definition

The process by which free electrons are emitted from the surface of a metal when external heat energy is applied is called thermionic emission.

Thermionic emission occurs in metals that are heated to a very high temperature. In other words, thermionic emission occurs, when large amount of external energy in the form of heat is

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