Question

In CRO the number of electrons are controlled by
1) Grid
2) Anode
3) Cathode
4) Filament

Answer 1

Answer:

I think correct answer is potential difference

Answer 2

1) Grid

In CRO the number of electrons are controlled by 1) Grid

The control grid is an electrode used to control the flow of electrons from the cathode to the anode (plate) electrode in amplifying thermionic valves (vacuum tubes) such as the triode, tetrode, and pentode. The control grid is often made up of a cylindrical screen or helix of thin wire that surrounds the cathode and is then encompassed by the anode.

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