Amplifiers

The voltage gain of a transistor amplifier typically remains constant at mid frequencies and varies at high and low frequencies.

In a transistor's CE configuration, the voltage gain can be found using the formula: where is the load resistance and is the internal emitter resistance given by: where is the thermal voltage (approximately 26 mV at room temperature) and is the collector current. Given: First, calculate : Now calculate the voltage gain: Thus, the correct answer is .