Modern Physics 7 Question 38

40. The plate resistance of a triode is 3×103Ω and its mutual conductance is 1.5×103A/V. The amplification factor of the triode is

(1981, 2M)

(a) 5×105

(b) 4.5

(c) 45

(d) 2×105

Numerical Value

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Solution:

  1. Given, rp=3×103Ω,gm=1.5×103A/V

Amplification factor, μ=gm×rp=4.5



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