If `beta, R_(L)` and r are the AC current gain, load resistance and the input resistance of a transistor respectively in CE configuration, the voltage

Question

If `beta, R_(L)` and r are the AC current gain, load resistance and the input resistance of a transistor respectively in CE configuration, the voltage

If `beta, R_(L)` and r are the AC current gain, load resistance and the input resistance of a transistor respectively in CE configuration, the voltage and the power gains respectively are
A. `beta(R_(L))/(r) and beta^(2)(R_(L))/(r)`
B. `beta(r)/(R_(L)) and beta^(2)(r)/(R_(L))`
C. `beta (R_(L))/(r) and beta((R_(L))/(r))^(2)`
D. `beta(r)/(R_(L)) and beta((r)/(R_(L)))^(2)`

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - A
Transistor as CE amplifier
Voltage gain, `A_(V)=(DeltaV_(0))/(DeltaV_(i))=beta_(AC)xx"Resistance gain"=betaxx(R_(L))/(r )`
Power gain `=(DeltaP_(0))/(DeltaP_(i))=beta_(AC)^(2)xx"Resistance gain"=beta^(2)xx(R_(L))/(r )`

4 views Answered 2023-02-05 15:29