Department of Pre-University Education, KarnatakaPUC Karnataka Science Class 12
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How Will the Thermionic Current Vary If the Filament Current is Increased? - Physics

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Question

How will the thermionic current vary if the filament current is increased?

Solution

If the filament current is increased, it will increase the temperature of the cathode (metal) and the cathode will emit more electrons. This will lead to an increase in the number of thermions emitted per unit time. As a result, the thermionic current will increase.

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Solution How Will the Thermionic Current Vary If the Filament Current is Increased? Concept: Electron Emission.
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