46.4. Output Resistance Discussion

Try these first

1. 1.

   What is output resistance?

   Hint

   Think about how it affects loads.

2. 2.

   What does KCL stand for?

   Hint

   It governs current flow at junctions.

3. 3.

   What does output resistance affect in an amplifier?

   • Current only
   • Voltage only
   • Both voltage and current

   Hint

   Consider the entire interaction with the load.

4. 4.

   True or False: KCL states that all currents at a junction must leave it.

   • True
   • False

   Hint

   Think about how currents balance.

5. 5.

   A common collector amplifier has an output resistance of 50 ohms. What happens if you change the load to 150 ohms?

   Hint

   Apply voltage division principles to find new output conditions.

6. 6.

   Analyze how increasing the collector resistance from 100 ohms to 500 ohms affects voltage gain and output resistance.

   Hint

   Evaluate the relationship between voltage gain and change in output resistance.