(a) Explain thermiopic emission
(b) State two applications of electrical conduction through gases.
(b) State two applications of electrical conduction through gases.
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Correct Answer: Option n
Explanation:
(a) Thermionic emission is the release of electrons from the surface of heated mentals. It is a surface phenomenon and the rate of electron emission increases with temperature increase.
(b) Applications of electrical conducting gases are:
— indentification of gases
— in advertising neon signs
— in fluorescent tubes.
(a) Thermionic emission is the release of electrons from the surface of heated mentals. It is a surface phenomenon and the rate of electron emission increases with temperature increase.
(b) Applications of electrical conducting gases are:
— indentification of gases
— in advertising neon signs
— in fluorescent tubes.