9.2.1. I-V Characteristic Representation

Try these first

1. 1.

   What is the main difference between n-p-n and p-n-p transistors?

   Hint

   Think about the layering order.

2. 2.

   What happens to current flow when a transistor is reverse biased?

   Hint

   Consider the direction of voltage application.

3. 3.

   What junction in an n-p-n transistor must be forward biased for operation?

   • Base-Collector
   • Base-Emitter
   • Emitter-Collector

   Hint

   Remember the arrangement of the junctions.

4. 4.

   In which quadrant does the I-V characteristic of a p-n-p transistor appear?

   • True (First Quadrant)
   • False (Third Quadrant)

   Hint

   Consider the signs of currents and voltages.

5. 5.

   Design a simple circuit with a p-n-p transistor to amplify a low-level audio signal. What biasing arrangement would you use, and what calculations are required?

   Hint

   Focus on maintaining V_EB and V_EC.

6. 6.

   Given the current gains and the saturation values for both n-p-n and p-n-p transistors, calculate the expected collector current for a given base current. Discuss how the differences in design affect performance.

   Hint

   Consider practical limits of each type.