7.5.2. Junction-2: Base to Collector Junction

Try these first

1. 1.

   What are the three main parts of a BJT?

   Hint

   Look for the key components the BJT utilizes for its operation.

2. 2.

   What happens to current flow in a BJT when the base-emitter junction is forward biased?

   Hint

   Consider the direction of voltage application and its effect on current.

3. 3.

   What is the role of the base in a BJT?

   • Control current
   • Collect current
   • Emitter region
   • None of the above

   Hint

   Think about its function in amplifying output signals.

4. 4.

   True or False: The collector current is always equal to the base current.

   • True
   • False

   Hint

   Reflect on the amplification properties of BJTs.

5. 5.

   Calculate the collector current (IC) given a base current (IB) of 10µA and a current gain (β) of 100. Then explain the significance of this relationship in practical applications.

   Hint

   Look for how the small base current contributes to a much larger collector current.

6. 6.

   Discuss the effect of varying temperatures on the collector current in a BJT that is forward biased.

   Hint

   Recall aspects of semiconductor behavior under temperature changes.