Engineering Physics Unit 5 Handwritten Notes AKTU (BAS101)

AKTU · BTECH · Semester 1, 2 · Engineering Physics · Unit 5 · Handwritten Notes

AKTU Engineering Physics (BAS101) Unit 5 handwritten notes for B.Tech Semester 1/2 – Superconductors and Nano-Materials. Topics: Superconductivity Basics…

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Unit 5: Superconductors and Nano-Materials – AKTU syllabus topics

  • Superconductivity Basics: Temperature Dependence Resistivity, Meissner Effect, Critical Field Persistent Current
  • Types of Superconductors: Type I and Type II Superconductors, High Temperature Superconductors, Properties Applications Superconductors
  • Nanomaterials Introduction Properties: Quantum Dots Wires Wells, Properties of Nanomaterials
  • Fabrication of Nanomaterials: Top Down Approach CVD, Bottom Up Approach Sol Gel, Applications of Nanomaterials

Most asked AKTU PYQ questions from Unit 5

  1. Q7a. What is the critical magnetic field? How does it vary with temperature? Critical temperature of superconductor when no magnetic field is applied is Tc. Find the temperature at which the critical field becomes half of its value at 0 K. (7 marks, 2025-26)
  2. Q7a. The superconducting transition temperature of Lead is 7.26 K. The initial field at 0 K is 64 × 10³ Amp m⁻¹. Calculate the critical field at 5 K. What are nano materials? Explain briefly the basic concepts of Quantum dot, Quantum wire and quantum well? (7 marks, 2024-25)
  3. Q7b. Describe the Meissner effect and differentiate between Type I and Type II superconductors on the basis of their magnetic behavior. (7 marks, 2024-25)
  4. Q2e. Explain type I and II superconductors. For a specimen of superconductor, the critical fields are 1.4 x 10⁵ and 4.2 x 10⁵ A/m for temperature 14K and 13K respectively. Calculate the transition temperature and fields at 0 K and 4.2 K. (7 marks, 2024-25)
  5. Q7a. Discuss Meissner effect. Show that perfect diamagnetism and zero resistivity are two independent and essential properties of the superconductor. (7 marks, 2024-25)
  6. Q7b. What are Nano materials? Explain briefly the basic concepts of Quantum Dots, Quantum wires and Quantum well. (7 marks, 2022-23)
  7. Q2e. Explain Type-I and Type-II superconductors. (7 marks, 2025-26)
  8. Q7b. Explain the term top-down approach for the fabrication of nano-materials. Describe CVD method for the synthesis of nano-materials with a suitable diagram. (7 marks, 2024-25)
  9. Q2e. A Superconducting material has critical temperature of 4.2 K in zero magnetic field and a critical field of 0.0306 T at 0K. Find the critical field at 2.1 K. (7 marks, 2023-24)
  10. Q7a. Explain Meissner's effect. Give the experimental demonstration of Meissner's effect. (7 marks, 2023-24)

AKTU paper codes: BAS101, BAS201, KAS101, KAS201

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