7.1.1. Isolation of Junctions and Diode Behavior

Try these first

1. 1.

   What happens to a BJT if its junctions are isolated?

   Hint

   Think about how diodes function.

2. 2.

   What is the role of reverse bias in BJTs?

   Hint

   Consider current flow in diodes.

3. 3.

   What effect does reverse bias have on a BJT?

   • Increases collector current
   • Decreases collector current
   • No effect

   Hint

   Consider the flow of electrons.

4. 4.

   True or False: An isolated BJT junction operates efficiently.

   • True
   • False

   Hint

   Think about functionalities of diodes vs. transistors.

5. 5.

   Propose a scenario in which adjusting the reverse bias voltage causes a significant change in current output for a BJT. Explain the mechanism.

   Hint

   Consider how current flows based on transistor configurations.

6. 6.

   If two BJTs are configured with different reverse bias voltages, predict how their current output will differ and explain why.

   Hint

   Think about the relationship between voltage levels and current flow.