9.4.2. Graphical Representation of Currents

Try these first

1. 1.

   What does I-V characteristics refer to in BJTs?

   Hint

   Think about how current changes with voltage.

2. 2.

   What is the role of B2 (Beta) in a BJT?

   Hint

   It shows how much the base current is amplified to produce collector current.

3. 3.

   What does B2 represent in a BJT?

   • Resistance
   • Current Gain
   • Voltage Level

   Hint

   Remember, it's associated with how much current is amplified.

4. 4.

   True or False: PNP transistors use electrons as majority charge carriers.

   • True
   • False

   Hint

   Think about the naming convention for both types.

5. 5.

   A BJT has a beta (B2) of 150. If the base current is 20μA, calculate the collector current.

   Hint

   Apply the current gain formula.

6. 6.

   Given a PNP transistor in a circuit, if the V_BE is 0.7V leading to a collector current of 2mA, explain how changing the temperature might affect the characteristic graph.

   Hint

   Links between temperature effects and current flow should guide your explanation.