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Two amplifiers are connected one after t...

Two amplifiers are connected one after the other in series (cascaded). 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 , calcualte the output AC signal .

A

1 V

B

2 V

C

3 V

D

4 V

Text Solution

Verified by Experts

The correct Answer is:
B
Total voltage gain, `A_(V)=(V_(o))/(V_(i))=A_(V_(1))xxA_(V_(2))`
or `V_(o)=V_(i)xxA_(V_(1))xxA_(V_(2))=0.01xx10xx20=2V`
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