Semiconductor Electronics Materials Devices And Simple Circuits Ques 63
63. For an electronic valve, the plate current I and plate voltage $V$ in the space charge limited region are related as
[1992]
(a) I is proportional to $V^{3 / 2}$
(b) I is proportional to $V^{2 / 3}$
(c) I is proportional to $V$
(d) I is proportional to $V^{2}$
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Answer:
Correct Answer: 63.(a)
Solution:
- (a) According to Child’s Law, $I_a=K V_a^{3 / 2}$
Thus, $I \propto V^{3 / 2}$
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