A) 8.5
B) 6
C) 4
D) 3
Correct Answer: B
Solution :
Power gain = current gain \[x\] voltage gain \[={{A}_{V}}\times \] current gain \[\therefore \] \[{{A}_{V}}=\frac{power\text{ }gain}{current\text{ }gain}=\frac{300}{50}=6\]
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