7.2.3. Current Equation of Normal or Standard p-n Junction

Try these first

1. 1.

   What is a BJT?

   Hint

   Think about the type of charges it uses.

2. 2.

   Define forward bias in a BJT.

   Hint

   Consider the direction of voltage application.

3. 3.

   What happens to current in a forward-biased junction?

   • It decreases
   • It remains constant
   • It increases exponentially

   Hint

   Remember the diode equation.

4. 4.

   The current under reverse bias conditions is compared to forward bias current how?

   • True
   • False

   Hint

   Think about what restricts current flow under reverse bias.

5. 5.

   Given a BJT with I0 = 5μA and V_BE = 0.6V, calculate the forward current at room temperature.

   Hint

   Don't forget to use the appropriate thermal voltage for calculations.

6. 6.

   Describe how an increase in temperature influences the performance of a BJT.

   Hint

   Think about how temperature affects particle movement.