If source resistance in an amplifier circuit is zero, then voltage gain (output to input voltage ratio) and source voltage gain (output to source voltage ratio) are the same.

Question

Quizplus · Accepted Answer

When the source resistance is zero, there is no voltage drop across it, making the input voltage equal to the source voltage, hence the voltage gain and source voltage gain become identical.

If Source Resistance in an Amplifier Circuit Is Zero, Then