The resultant voltage gain in a series combin | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) In the given figure,two amplifiers with voltage gains $A_{V1}$ and $A_{V2}$ are connected in series.For the first amplifier,the voltage gain is $A

Vedclass · Accepted Answer

Equal to the product of the voltage gains of each amplifier

Vedclass · Answer

(B) In the given figure,two amplifiers with voltage gains $A_{V1}$ and $A_{V2}$ are connected in series.For the first amplifier,the voltage gain is $A_{V1} = \frac{v_{o1}}{v_i}$.For the second amplifier,the voltage gain is $A_{V2} = \frac{v_o}{v_{o1}}$.When both amplifiers are connected in series,the combined voltage gain $A_V$ is given by:$A_V = \frac{v_o}{v_i} = \left( \frac{v_o}{v_{o1}} ight) 	imes \left( \frac{v_{o1}}{v_i} ight)$Therefore,$A_V = A_{V1} 	imes A_{V2}$.

The resultant voltage gain in a series combination of two or more amplifiers is .......

Similar Questions

Two amplifiers are connected one after the other in series (cascade). The first amplifier has a voltage gain of $10$ and the second has a voltage gain of $20$. If the input signal is $0.01\, V$,the output $ac$ signal will be........$V$.

The frequency response curve of an $RC$ coupled amplifier is shown in the figure. The bandwidth of the amplifier will be

Which of the following figures correctly shows the phase relation between the input signal and the output signal of a common-emitter transistor amplifier?

The $I-V$ characteristic of an $LED$ is:

In an oscillator,for sustained oscillations,the Barkhausen criterion is $A \beta$ equal to (where $A =$ voltage gain without feedback,$\beta =$ feedback factor).

Vedclass Test Series

Exam Paper Generator

Online Exam Module