Question
Physics Question on Semiconductor electronics: materials, devices and simple circuits
In a triode valve, grid is used to control the plate current, because:
A
grid has negative voltage
B
grid has no voltage
C
grid is nearer to cathode than plate
D
none of these
Answer
grid has negative voltage
Explanation
Solution
In a triode valve, grid is given less positive or negative voltage. But generally, to control the plate current, grid is given negative voltage.