A) \[60\]
B) \[{{10}^{4}}\]
C) \[6\times {{10}^{2}}\]
D) \[{{10}^{2}}\]
Correct Answer: D
Solution :
\[{{A}_{\text{v}}}\times \beta ={{P}_{gain}}\] \[60=10{{\log }_{10}}\left( \frac{P}{{{P}_{0}}} \right)\] \[P={{10}^{6}}={{\beta }^{2}}\times \frac{{{R}_{out}}}{{{R}_{in}}}\] \[={{\beta }^{2}}\times \frac{{{10}^{4}}}{100}\] \[{{\beta }^{2}}={{10}^{4}}\] \[\beta =100\]
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