AP EAMCET · PHYSICS · Semiconductors
Three amplifiers with voltage gains 10,20 and 30 are connected in series. If the input signal has a peak value of \(1 \mathrm{mV}\) then the peak value of the output voltage is
- A \(6 \mathrm{~V}\)
- B \(60 \mathrm{~V}\)
- C \(0.6 \mathrm{~V}\)
- D \(0.06 \mathrm{~V}\)
Answer & Solution
Correct Answer
(A) \(6 \mathrm{~V}\)
Step-by-step Solution
Detailed explanation
Given, voltage gains of three amplifiers, \(A_1=10, A_2=20 \text { and } A_3=30\) peak value of input signal \(V_i=1 \mathrm{mV}=10^{-3} \mathrm{~V}\) Total gain of three amplifiers connected in series is given by…
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