In a multistage system which stage is the most dominant with

In a multistage system, which stage is the most dominant with noise?

a. first

b. last

c. any middle

Solution

In a mutistage amplifier after a certain stage , noise may become dominant over the output message signal,causing threshold effect after which the signal cannot be recovered from noise .

n a multistage system, which stage is the most dominant with noise is

FIRST STAGE .

THE noise figure can be reduced by keeping high available power gain of first stage .