9.1. Analog Electronic Circuits

Try these first

1. 1.

   What does BJT stand for?

   Hint

   Consider the two types of charge carriers it uses.

2. 2.

   Define β in the context of BJTs.

   Hint

   Think about how the collector current relates to the base current.

3. 3.

   What are the two types of BJTs?

   • n-p-n and p-n-p
   • n-n-p and p-p-n
   • p-n and n-p

   Hint

   Think about the layout of the semiconductor materials.

4. 4.

   True or False: The collector current is always larger than the base current in a properly functioning BJT.

   • True
   • False

   Hint

   Consider the definition of the gain parameter β.

5. 5.

   If a BJT has a β of 200 and the collector current is 20mA, calculate the base current. What happens to the collector current if the base current is increased to 0.1mA?

   Hint

   Understanding the relationship is crucial.

6. 6.

   Design a simple circuit using a BJT that amplifies an input signal and describe the biasing method used.

   Hint

   Focus on ensuring the BJT remains in the active region.