In an electron gun,the control grid is kept a | vedclass

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Question

(B) In an electron gun,the cathode emits electrons via thermionic emission. The control grid is placed between the cathode and the accelerating anode.

Vedclass · Accepted Answer

To control the flow of electrons by repelling them.

Vedclass · Answer

(B) In an electron gun,the cathode emits electrons via thermionic emission. The control grid is placed between the cathode and the accelerating anode. By maintaining the control grid at a negative potential relative to the cathode,it acts as a gate that repels the electrons. This allows for the regulation of the number of electrons passing through the aperture,thereby controlling the intensity of the electron beam.

In an electron gun,the control grid is kept at a negative potential with respect to the cathode because...

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