In Coolidge tube electrons were ejected by the cathode because of which method:

Thermionic emission

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Photo electric emission

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Corona discharge

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All of the above.

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Solution

The correct option is A
Thermionic emission

In a Coolidge tube set-up a filament is used as the cathode which eject electrons when heated by passing electric current through it. This method is called as thermionic emission.

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In Coolidge tube electrons were ejected by the cathode because of which method:

The correct option is A Thermionic emission In a Coolidge tube set-up a filament is used as the cathode which eject electrons when heated by passing electric current through it. This method is called as thermionic emission.

The correct option is A
Thermionic emission

In a Coolidge tube set-up a filament is used as the cathode which eject electrons when heated by passing electric current through it. This method is called as thermionic emission.