Unit 1
- What are the key differences between n-type and p-type semiconductors?
- Explain the working principle of a half-wave rectifier with a neat diagram.
- Explain the working principle of a full-wave rectifier with a neat diagram.
- With the help of a neat diagram, explain the comparison between a diode and a voltage regulator.
Unit 2
- What is a Zener diode? Explain its working principle and applications in detail.
- Explain the working principle of a varactor diode. What are its applications?
- What are the different types of optical diodes? Explain each with suitable examples.
Unit 3
- How does a transistor work as an amplifier? Explain the process.
- Explain the structure of a Bipolar Junction Transistor (BJT) and its working principle.
- How does a transistor function as a switch? Describe the process in detail.
- What are the basic characteristics of a transistor? Explain with relevant diagrams.
Unit 4
- Compare the characteristics and parameters of a Junction Field Effect Transistor (JFET) and a Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET).
- What is a Field-Effect Transistor (FET)? Explain its working principle and applications.
Unit 5
- What is a Silicon Controlled Rectifier (SCR)? Explain its construction, working principle, and applications.
- What is a Uni-Junction Transistor (UJT)? Explain its construction, working principle, and applications.
- What are photo transistors? Explain their construction and working principle. How are they different from regular transistors?
- What are optical couplers? Explain their working principle and applications.