Question

For a transistor amplifier power gain and voltage glain are $7.5$ and $2.5$ respectively. The value of the current gain will be

• A. 0.33
• B. 0.66
• C. 0.99
• D. 3

Answer 1

Answer: (D)

Power gain = Voltage gain $\times$ Current gain
Amplifier power gain $=7.5$
and voltage gain is $2.5$
Current gain $=\frac{7.5}{2.5}=3$