Modern Physics 7 Question 38
40. The plate resistance of a triode is $3 \times 10^{3} \Omega$ and its mutual conductance is $1.5 \times 10^{-3} A / V$. The amplification factor of the triode is
(1981, 2M)
(a) $5 \times 10^{-5}$
(b) 4.5
(c) 45
(d) $2 \times 10^{5}$
Numerical Value
Show Answer
Solution:
- Given, $r _p=3 \times 10^{3} \Omega, g _m=1.5 \times 10^{-3} A / V$
$\therefore$ Amplification factor, $\mu=g _m \times r _p=4.5$
