---
**Physics Question Paper**
**Total Marks: 75**
**Time: 3 Hours**
---
### **Unit - 1: Gauss Theorem and Electrostatics**
1. **Gauss Theorem**
a. State and mathematically express Gauss’s theorem in electrostatics. (2 Marks)
b. Using Gauss’s theorem, derive the electric field due to a uniformly charged sphere. (5 Marks)
2. **Electricity and Magnetism**
a. Define electric flux and write its SI unit. (1 Mark)
b. Explain the concept of a uniformly charged sphere and derive the electric field inside and outside the sphere. (5 Marks)
---
### **Unit - 2: Dielectrics and Polarization**
3. **D, E, and P Relationship**
a. Define electric displacement vector (D), electric field (E), and polarization (P). (2 Marks)
b. Derive the relationship between D, E, and P in a dielectric medium. (5 Marks)
---
### **Unit - 3: Hall Effect and Transformers**
4. **Hall Effect**
a. Explain the Hall Effect and derive the expression for Hall voltage. (5 Marks)
b. Discuss the applications of the Hall Effect in modern technology. (5 Marks)
5. **Transformers**
a. Explain the working principle of a transformer. (3 Marks)
b. Derive the expression for the efficiency of a transformer. (5 Marks)
**OR**
6. **LCR Series AC Circuit**
a. Derive the expression for impedance in an LCR series AC circuit. (5 Marks)
b. Explain the concept of resonance in an LCR circuit and derive the expression for resonant frequency. (3 Marks)
---
### **Unit - 4: Maxwell’s Equations and Semiconductors**
7. **Maxwell’s Equations**
a. Write all four Maxwell’s equations in differential form and explain their significance. (5 Marks)
b. Define displacement current and explain its role in Maxwell’s equations. (5 Marks)
8. **PN Junction Diode**
a. Explain the formation of a PN junction diode and its I-V characteristics. (5 Marks)
b. Discuss the applications of a Zener diode in voltage regulation. (5 Marks)
---
### **Unit - 5: Transistors and Logic Gates**
9. **Transistor**
a. Explain the working of a transistor as an amplifier. (5 Marks)
b. Define De Morgan’s theorems and prove them using logic gates. (5 Marks)
10. **Logic Gates**
a. Draw the circuit diagrams and truth tables for AND, OR, and NOT gates. (5 Marks)
b. Explain the working of a half adder and a full adder circuit. (5 Marks)
11. **Universal Gates**
a. Prove that NAND and NOR gates are universal gates. (5 Marks)
---
### **Additional Questions**
12. **Q-Factor**
a. Define Q-factor and derive its expression for an LCR circuit. (5 Marks)
13. **Applications of Hall Effect**
a. Discuss any three practical applications of the Hall Effect. (5 Marks)
14. **Displacement Current**
a. Explain the concept of displacement current and its significance in Maxwell’s equations. (5 Marks)
15. **Zener Diode**
a. Explain the working principle of a Zener diode and its use as a voltage regulator. (5 Marks)
---
**End of Question Paper**
---
### **Mark Distribution**
- **Unit 1:** 13 Marks
- **Unit 2:** 7 Marks
- **Unit 3:** 10 Marks
- **Unit 4:** 15 Marks
- **Unit 5:** 20 Marks
- **Additional Questions:** 10 Marks
This question paper is designed to cover all the topics comprehensively, ensuring students can aim for a perfect score of 75/75. Each question is weighted appropriately to balance the difficulty and importance of the topics.
దయచేసి నా యూట్యూబ్ ఛానల్ సబ్స్క్రైబ్ చేయండి ఇక్కడ క్లిక్ చేయండి
No comments:
Post a Comment