46.2.3. Voltage Gain Relationship

Try these first

1. 1.

   Define voltage gain in your own words.

   Hint

   Consider how changes in output relate to input.

2. 2.

   What is the significance of high input resistance?

   Hint

   Reflect on how this affects signal quality.

3. 3.

   What is the formula for voltage gain in a common collector amplifier?

   • A_v = V_o / V_in
   • A_v = V_in / V_o
   • A_v = V_o + V_in

   Hint

   Think about how output and input relate.

4. 4.

   True or False: The output resistance of a common collector amplifier should be high.

   • True
   • False

   Hint

   Consider signal flow to the next stage.

5. 5.

   Design a simple common collector amplifier with given resistances. Calculate the expected voltage gain if V_in is 2V and output voltage is 9V.

   Hint

   Apply the voltage gain formula and plug in the values.

6. 6.

   Analyze how resistor values at the collector impact both output resistance and voltage gain simultaneously.

   Hint

   Consider using KCL to define currents as you analyze.