Question

The collector resistance and the input resistance of a CE amplifier are respectively 10 k\(\Omega\) and 2 k\(\Omega\). If \(\beta\) of the transistor is 49, the voltage gain of the amplifier is

• A. 125
• B. 150
• C. 175
• D. 200
• E. 245

Hint:

Voltage gain is effectively "Current Gain \(\times\) Resistance Gain." Since the collector usually has a much higher resistance than the base, the voltage is amplified significantly even beyond the current gain \(\beta\).

Answer 1

Answer: (E)