Subject: General Science
Book: NCERT Physics Class 12
Semiconductors are materials with conductivity between conductors and insulators.
- **Types of Semiconductors**:
- Intrinsic and extrinsic (p-type, n-type).
- **Diodes and Transistors**:
- Applications in rectifiers and amplifiers.
- **Logic Gates**:
- AND, OR, NOT, NAND, NOR.
**Possible Exam Questions:**
1. Differentiate between intrinsic and extrinsic semiconductors.
2. Explain the working of a PN junction diode.
3. What is a transistor? How does it work as an amplifier?
4. Describe the function of different logic gates.
5. What is the significance of doping in semiconductors?
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