7.2.1. Basic Structure of BJT

Try these first

1. 1.

   What are the three regions of a BJT?

   Hint

   Think about the layout of the transistor.

2. 2.

   What is the main use of BJTs?

   Hint

   Consider electronic circuits.

3. 3.

   What type of semiconductor materials does a BJT use?

   • Only n-type
   • Only p-type
   • Both n-type and p-type

   Hint

   Think about what 'bipolar' means.

4. 4.

   True or False: A BJT can only conduct in the forward bias condition.

   • True
   • False

   Hint

   Consider the nature of both bias conditions.

5. 5.

   Design a circuit using a BJT as an amplifier. Describe the biasing conditions required.

   Hint

   Consider typical values for resistors and voltages.

6. 6.

   Explain how temperature variations might affect a BJT operation. What measures can be taken to stabilize performance?

   Hint

   Think about thermal issues in electronic devices.