4.2. Revisit to Pre-Requisite Topics (Contd.)

Try these first

1. 1.

   What is the I-V characteristic for diodes?

   Hint

   Think about how current behaves as voltage approaches the cut-in voltage.

2. 2.

   What happens to the current when the voltage across a diode is less than the cut-in voltage?

   Hint

   Refer back to the diode's OFF condition.

3. 3.

   What is the behavior of current in a diode when reverse saturation voltage is applied?

   • Current increases significantly
   • Current remains approximately constant
   • Current decreases

   Hint

   Think about reverse bias in diodes.

4. 4.

   A diode functions as an ideal component in non-linear applications.

   • True
   • False

   Hint

   Consider real-life applications and approximations needed.

5. 5.

   Design a simple circuit with a diode and an external resistor that allows a specific output voltage when an AC signal is added. Calculate the values needed for the desired operational conditions.

   Hint

   Use the predictions from the current-voltage relationship.

6. 6.

   Given a graph showing the I-V characteristics of a diode at different temperatures, determine how temperature variations might affect the performance of the diode.

   Hint

   Consider how temperature affects semiconductor behavior.