NCERT Class XII Chapter
Semiconductor Electronics
Questions With Solutions
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Question : 10
Total: 19
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 volt, calculate the output ac signal .
Solution:
Total voltage gain can be calculated as
A v A V 1 × A v 2
A v
V out
So, output voltage,
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