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 a

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 a

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. `betaR_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

Related Questions

A nucleus with Z =92 emits the following in a sequence: `alpha,beta^(-),beta^(-),alpha,alpha,alpha,alpha,alpha,beta^(-),beta^(-),alpha,beta^(+),beta^(

2 Answers 5 Views

The current amplification factor `alpha` of a common base transistor and the current amplification factor `beta`of a common emitter transistor are not

2 Answers 5 Views

A transistor has a current amplification factor (current gain) of 50. In a common emitter amplifier circuit, the collector resistance is chosen as `5O

2 Answers 4 Views

The ac current gain of a transistor is 120. What is the change in the collector current in the transistor whose base current changes by `100 muA`?

2 Answers 5 Views

The input resistance of a transistor is `1000 Omega` on charging its base current by `10 muA`, the collector current increases by 2 mA. If a load resi

2 Answers 4 Views

A transistor has a current gain of 30. If the collector resistance is `6kOmega`, input resistance is `1kOmega`, calculate its volage gain?

2 Answers 5 Views

What is the voltage gain in a common emitter amplifier, where input resistance is `3Omega` and load resistance `24Omega` and `beta=61` ?

2 Answers 4 Views

An amplifier has a voltage gain of 100. The voltage gain in dB is

2 Answers 4 Views

If `alpha, beta, gamma` are three real numbers and `A=[(1,cos (alpha-beta),cos(alpha-gamma)),(cos (beta-alpha),1,cos (beta-gamma)),(cos (gamma-alpha),

2 Answers 4 Views

The value of `(alpha^3)/2cos e c^2(1/2tan^(-1)alpha/beta)+(beta^3)/2sec^2(1/2tan^(-1)(beta/alpha))i se q u a lto` `(alpha+beta)(alpha^2+beta^2)` (b) `

2 Answers 5 Views

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

Salim Ahmed Kawsar

Correct Answer - A
Voltage gain = current gain x resistance gain `=betaxx("output resistance")/("input resistance")=betaxxR_L/r`
Power gain = voltage gain x current gain `=betaR_L/rxxbeta=beta^2R_L/r`

4 views Answered 2023-02-05 15:29