29.4.2. Voltage Gain, Input Resistance, and Output Resistance

Try these first

1. 1.

   What does the term voltage gain mean?

   Hint

   Think about how much the amplifier boosts the signal.

2. 2.

   Define input resistance in the context of an amplifier.

   Hint

   Consider how much of the input signal is actually received.

3. 3.

   What does voltage gain signify in an amplifier?

   • Output voltage to input voltage ratio
   • Input resistance
   • Current amplification

   Hint

   Recall the fundamental definition of gain.

4. 4.

   Is a higher input resistance always preferable in amplifiers?

   • True
   • False

   Hint

   Consider why we want to keep our signal intact.

5. 5.

   Design a CE amplifier with specified voltage gain and input resistance. Explain how you would select the transistors and resistors.

   Hint

   Consider the transistor parameters and how they interact with the resistors in the circuit.

6. 6.

   Evaluate the performance degradation in a CE amplifier if adding a significant load resistance. What adjustments might you make?

   Hint

   Think about resistor interactions and the overall circuit design.