Question
Question: In a triode,\(g_{m} = 2 \times 10^{- 3}ohm^{- 1};\mu = 42\), resistance load, \(R = 50\) kilo ohm. T...
In a triode,gm=2×10−3ohm−1;μ=42, resistance load, R=50 kilo ohm. The voltage amplification obtained from this triode will be
A
30.42
B
29.57
C
28.18
D
27.15
Answer
29.57
Explanation
Solution
Voltage gain
Av=1+RLrpμ and μ=rp×gm
⇒rp=2×10−342=21000Ω⇒Av=1+50×1032100042=29.57