SemiconductorHard
Question
A transistor is used as an amplifier in CB mode with a load resistance of 5 kΩ the current gain of amplifier is 0.98 and the input resistance is 70Ω, the voltage gain and power gain respectively are :-
Options
A.70, 68.6
B.80, 75.6
C.60, 66.6
D.90, 96.6
Solution
Av = α
= 0.98 ×
= 70
and AP = αAV
= 0.98 × 70
= 68.6
= 0.98 ×
= 70and AP = αAV
= 0.98 × 70
= 68.6
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