Questions
What is the voltage gain of a common emitter amplifier where input resistance is and load resistance is (given, )
a
2.2
b
1.2
c
4.8
d
48
detailed solution
Correct option is D
Given that,Input resistanceRi=3 Ωoutput resistanceR∘=24 Ωβ=6The voltage gain is defined as the product of the current gain and the ratio of the output resistance of the collector to the input resistance of the base circuits.AV=βR∘Rin Av=6×243AV = 48Talk to our academic expert!
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