4 Why does thermionic emission takeplace from a metal surface only? – InterviewSolution

1.	4 Why does thermionic emission takeplace from a metal surface only?
Answer» Thermionic emission takes placefrom thesurfaceofmetalbecause its easy for the free electrons to escape from themetal surfacethen from inside themetalwhere the attractive forceismore as compared to themetal surface.

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