Question

A transistor has a current gain of 30. If the collector resistance is 6 $k\Omega$ input resistance is $1k\Omega$ its voltage gain is

• A. 90
• B. 180
• C. 45
• D. 360

Answer 1

Answer: (B)

180

Answer 2

: Voltage gain = current gain × resistance gain

= current gain $\times \frac{R_{C}}{R_{i}} = 30 \times \frac{6}{1} = 180$