Home Physics Semiconductor Electronics Valve Electronics The grid in a triode valve is used
Physics Semiconductor Electronics Valve Electronics MCQ (Single Correct)

The grid in a triode valve is used

A
To increases the thermionic emission
B
To control the plate to cathode current
C
To reduce the inter-electrode capacity
D
To keep cathode at constant potential

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Text Solution

Verified by Experts
The correct answer is:
B

In a triode valve, the grid controls the flow of electrons from cathode to plate (anode). A small change in grid voltage causes a large change in plate current.

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