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Two amplifiers are connected in series. 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 then output signal voltage is:

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0.2 V

0.3 V

2 V

3 V

answer is C.

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Detailed Solution

$\begin{array}{l} V_{0} = (A_{1} \times A_{2}) V_{s} \\ = (10 \times 20) \times 0 .01 = 2 V \end{array}$

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