Semiconductor Electronics Materials Devices and Simple Circuits - Result Question 83

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85. For amplification by a triode, the signal to be amplified is given to

======= ####85. For amplification by a triode, the signal to be amplified is given to

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(b) the grid

(c) the glass-envelope

(d) the anode

[1992]

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Answer:

Correct Answer: 85. (b)

Solution:

  1. (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.