The introduction of a grid in a triode valve | vedclass

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(D) In a triode valve,a cloud of electrons forms near the cathode due to thermionic emission,known as the space charge. This negative space charge rep

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By neutralising space charge

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(D) In a triode valve,a cloud of electrons forms near the cathode due to thermionic emission,known as the space charge. This negative space charge repels other electrons emitted from the cathode,thereby limiting the plate current. When a grid is introduced between the cathode and the plate,it can be biased to control the electric field. By applying a positive potential to the grid,it neutralizes the negative space charge,allowing more electrons to reach the plate and thus increasing the plate current.

The introduction of a grid in a triode valve affects plate current by

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