Semiconductor Electronics Materials Devices and Simple Circuits - Result Question 83
85. For amplification by a triode, the signal to be amplified is given to
(a) the cathode
(b) the grid
(c) the glass-envelope
(d) the anode
[1992]
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Answer:
Correct Answer: 85. (b)
Solution:
- (b) The amplifying action of a triode is based on the fact that a small change in grid voltage causes a large change in plate current. The AC input signal which is to be amplified is superimposed on the grid potential.
