The current gain of a transistor in a common base arrangement is 0.95. Find the voltage gain if the load resistance of output circuit is 200 kΩ and the input resistance is 200 Ω.
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → 950
The voltage gain in a common base configuration is,
Voltage gain, $A_v=\frac{R_L}{R_m}×β$
$=\frac{200×10^3}{200}×0.95$
$=950$