Thermionic emission is the process whereby - SchoolNGR

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Thermionic emission is the process whereby

Thermionic emission is the process whereby

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Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE

A Î² - rays are produced
B Holes are produced
C X - rays are produced
D Electrons leave a hot element

Correct Answer: Option D

Explanation:
Thermionic emission is ejection of electron from a metal surface as a result of heating.

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