In an electron gun the control grid is given a negative potential relative to cathode in order to
In an electron gun the control grid is given a negative potential relative to cathode in order to
- A
Decelerate electrons
- B
Repel electrons and thus to control the number of electrons passing through it
- C
To select electrons of same velocity and to converge them along the axis
- D
To decrease the kinetic energy of electrons8.
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