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.

950

The correct answer is Option (3) → 950

The voltage gain in a common base configuration is,

Voltage gain, $A_v=\frac{R_L}{R_m}×β$

$=\frac{200×10^3}{200}×0.95$

$=950$