• PTU PAPER
    • Group 1
      • Digital Electronics
      • Applied Electronics
      • Electromagnetic Filed
      • Power Plant Engg
    • Group 2
      • Power Sytem-1
      • DC Machines
      • Asychronous Machines
      • Electrical Generation & Economics
    • Group 3
      • Electrical Generation & Economics
      • Electrical Engg Materials
      • Electromagnetic Field
      • Power Plant Engg
    • Group 4
      • Asychronous Machines
      • Power Plant Engg
      • Applied Electronics
      • Electromagnetic Field
  • Contact
  • About Us
  • Courses

    About Courses

    • Courses Archive
    • Become an Instructor
    • Instructor Profile
  • B.TECH PAPER
    • Power Plant Engineering Ptu Paper
    • Power System-1 PTU Paper
    • Power Electronics PTU Paper
    • Electromagnetic Fields PTU Paper
    • Linear Control Systems PTU Paper
    • Electrical Engg Materials
    • Electrical Engg Materials B.Tech Paper
    • EMEC & DC Machines PTU Paper
  • Terms & Conditions
  • Disclaimer
PTUPAPER.COMPTUPAPER.COM
    • PTU PAPER
      • Group 1
        • Digital Electronics
        • Applied Electronics
        • Electromagnetic Filed
        • Power Plant Engg
      • Group 2
        • Power Sytem-1
        • DC Machines
        • Asychronous Machines
        • Electrical Generation & Economics
      • Group 3
        • Electrical Generation & Economics
        • Electrical Engg Materials
        • Electromagnetic Field
        • Power Plant Engg
      • Group 4
        • Asychronous Machines
        • Power Plant Engg
        • Applied Electronics
        • Electromagnetic Field
    • Contact
    • About Us
    • Courses

      About Courses

      • Courses Archive
      • Become an Instructor
      • Instructor Profile
    • B.TECH PAPER
      • Power Plant Engineering Ptu Paper
      • Power System-1 PTU Paper
      • Power Electronics PTU Paper
      • Electromagnetic Fields PTU Paper
      • Linear Control Systems PTU Paper
      • Electrical Engg Materials
      • Electrical Engg Materials B.Tech Paper
      • EMEC & DC Machines PTU Paper
    • Terms & Conditions
    • Disclaimer

    Electrical Engg Materials

    • Home
    • Electrical Engg Materials
    • Electrical Engg Materials EE-208 4th Sem April 2013 B.Tech EE Paper

    Electrical Engg Materials EE-208 4th Sem April 2013 B.Tech EE Paper

    • Posted by admin
    • Categories Electrical Engg Materials, Electrical Engg Materials B.Tech Paper
    • Date January 20, 2016
    • Comments 0 comment

    Download Previous Year Diploma Paper of Electrical Engg.Materials EE-208 4th Sem April 2013 B.Tech EE Paper

                         B.Tech. (EE/EEE) (Sem.–4)

          ELECTRICAL ENGINEERING MATERIALS

    Subject Code : EE-208                                  Paper ID : [ A0410]

    Time : 3 Hrs.                                                     Max. Marks : 60

    INSTRUCTIONS TO CANDIDATES :
    1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
    2. SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
    3. SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.

    Electrical Engg.Materials EE-208 4th Sem April 2013 B.Tech EE Paper

                                                    SECTION-A

    Q1. Do as directed.                                                                                                              15×1=15

        a. Justify the presence of in the equation,
        b. Define the quantity expressed by
        c. Write the relationship for combined polarization as function of r and                   atomic constant e, i , o.
        d. Write an expression for the current through the capacitor considering                   complex dielectric.
         e. Explain the term “Debye Temperature”.
         f. Give the expression for Curie-Weiss rule, explain.
         g. Give the material composition of soft solder rods.
         h. Draw arrangement of dipole moments in different magnetic materials.
          i. Draw B-H curves for transformer core and resistance filament materials.
          j. Derive Electric flux density ‘D’ from Coulomb’s law.

                                          SECTION-B

    Q2. Attempt any five questions.                                                                    5×6=30

          2. What do you mean by polarization of dielectric materials when subjected            to static fields?
          3. Explain electrical conductivity of metal. Explain the necessity of alloy                 materials.
          4. Explain the term superconductivity. Explain the effect of temperature of               magnetic flux.
          5. Explain the characteristics of magnetic materials used for electrical                      apparatus.
          6. Explain why, Curie Law was modified to Curie-Weiss Law?

                                         SECTION-C

    Q3. Attempt any three questions.                                                       3×10=30

         7. Derive the Clausius-Mosotti relation for dielectric materials and hence                 deduce Lorentz-Lorenz equation.
         8. A conduction wire has a resistivity of 2.04 × 10–8 ohm-m at room                           temperature. The Fermi energy for such a conductor is 5.8ev. There are
              5.8 × 1028 conduction electrons per m3. Calculate :
         (i) the mobility and relaxation time of the electrons.
        (ii) the average drift velocity of the electrons when the electric field applied              to the conductor is 1.1 V per m.
        (iii) velocity of an electron with the Fermi energy.
        (iv) the mean free path of the electrons.
         9. Explain ferromagnetic domains. Explain B-H curves for power                               transformer and induction motor design.

    Electrical Engg.Materials EE-208 4th Sem April 2013 B.Tech EE Paper

    Get Started

    Section a Electrical Engg.Materials EE-208 4th Sem April 2013 B.Tech EE Paper              

    Justify the presence of in the equation,

    Justify the presence of in the equation,
        

    Define the quantity expressed by

    Quantity expressed by
        

    Write the relationship for combined polarization as function of r and                   atomic constant e, i , o.

    Relationship for combined polarization as function of r and                   atomic constant e, i , o.
        

    Write an expression for the current through the capacitor considering complex dielectric.

    Expression for the current through the capacitor considering complex dielectric.
         

    Explain the term “Debye Temperature”.

    “Debye Temperature”.
         

    Give the expression for Curie-Weiss rule, explain.

    Expression for Curie-Weiss rule
        

    Give the material composition of soft solder rods.

    Material composition of soft solder rods.
         

    Draw arrangement of dipole moments in different magnetic materials.

    Arrangement of dipole moments in different magnetic materials.
          

    Draw B-H curves for transformer core and resistance filament materials.

    B-H curves for transformer core and resistance filament materials.
          

    Derive Electric flux density ‘D’ from Coulomb’s law.

    Electric flux density ‘D’ from Coulomb’s law.

    Electrical Engg.Materials EE-208 4th Sem April 2013 B.Tech EE Paper 

    Section B :Electrical Engg.Materials EE-208 4th Sem April 2013 B.Tech EE Paper              

    What do you mean by polarization of dielectric materials when subjected to static fields?

    Polarization of dielectric materials when subjected to static fields

    Explain electrical conductivity of metal. Explain the necessity of alloy materials.

    Electrical conductivity of metal. Explain the necessity of alloy materials.

    Explain the term superconductivity. Explain the effect of temperature of magnetic flux.

    Superconductivity. Explain the effect of temperature of magnetic flux.

    Explain the characteristics of magnetic materials used for electrical apparatus.

    Characteristics of magnetic materials used for electrical apparatus.

    Explain why, Curie Law was modified to Curie-Weiss Law?

    Why, Curie Law was modified to Curie-Weiss Law

    Electrical Engg.Materials EE-208 4th Sem April 2013 B.Tech EE Paper 

    Electrical Engg. Materials EE-208 4th Sem April 2013 B.Tech EE Paper

    Get Started

    Section c :-Electrical Engg.Materials EE-208 4th Sem April 2013 B.Tech EE Paper              

    Derive the Clausius-Mosotti relation for dielectric materials and hence deduce Lorentz-Lorenz equation.

    Clausius-Mosotti relation for dielectric material

    Deduce Lorentz-Lorenz equation.

    A conduction wire has a resistivity of 2.04 × 10–8 ohm-m at room temperature. The Fermi energy for such a conductor is 5.8ev. There are 5.8 × 1028 conduction electrons per m3.

     

    Calculate : (i) the mobility and relaxation time of the electrons.

    (i) the mobility and relaxation time of the electrons.

    (ii) the average drift velocity of the electrons when the electric field applied to the conductor is 1.1 V per m.

    The average drift velocity of the electrons when the electric field applied to the conductor is 1.1 V per m.

    (iii) velocity of an electron with the Fermi energy.

    (iii) velocity of an electron with the Fermi energy.

    (iv) the mean free path of the electrons.

    (iv) the mean free path of the electrons.

    Explain ferromagnetic domains. Explain B-H curves for power transformer and induction motor design.

    Ferromagnetic domains.

    Explain B-H curves for power transformer and induction motor design.

    Electrical Engg.Materials EE-208 4th Sem April 2013 B.Tech EE Paper
    MY YOUTUBE CHANNEL
    JK Smart Classes Upload Lecture for Degree classes like B.TECH,M.TECH in any stream like ECE,EE,ME and Civil Engineering
    JK SMART CLASSES
    ER.JASWINDER KUMAR
    JK SMART LECTURE
    ER.JASWINDER KUMAR
    Engineering Classes Upload Lecture for Polytechnic Diploma classes in any stream like ECE,EE,ME and Civil Engineering
    ENGINEERING CLASSES
    ER.JASWINDER KUMAR
    er.jaswinder kumar
    Senior Lecturer

    Tag:4th Sem, April 2013, B.Tech, B.Tech EE Paper, EE-208, Electrical Engg Materials

    • Share:
    author avatar
    admin

      Previous post

      Electrical Engg. Materials EE-208 4th Sem Nov 2016 B.Tech PTU EE Paper
      January 20, 2016

      Next post

      Applied Electronics EE-204 PTU 4th Sem B.Tech EE April 2013 Paper
      July 7, 2016

      You may also like

      blog-8
      Electrical Engg. Materials EE-208 4th Sem Nov 2016 B.Tech PTU EE Paper
      20 January, 2016

      Leave A Reply Cancel reply

      Your email address will not be published. Required fields are marked *

      Search

      Categories

      • Analog Devices & Circuits
      • Analog Devices & Circuits Paper
      • Applied Electronics PTU Paper
      • Asynchronous Machines PTU Paper
      • Blog
      • Circuit Theory PTU Paper
      • Digital Electronics PTU Question Paper
      • Electric Generation & Economics PTU Paper
      • Electrical Engg Materials
      • Electrical Engg Materials B.Tech Paper
      • Electromagnetic Fields PTU Paper
      • EMEC & DC Machines PTU Paper
      • Linear Control Systems
      • Linear Control Systems PTU Paper
      • Power Electronics PTU Paper
      • Power Plant Engineering Ptu Paper
      • Power System-1 PTU Paper

      PTUPAPER.COM

      (91) 98 1489 1489

      paperptu@gmail.com

      Company

      • About Us
      • Contact
      • Become a Teacher

      Links

      • Courses
      • Events
      • FAQs

      Support

      • ECE
      • EEE
      • CSE
      • ME
      • Civil

      Recommend

      • JK SMART CLASSES
      • JK SMART LECTURE
      • JK ENGINEERING CLASSES

      Download Previous Year's PTU Solved Question Paper by PTU PAPER

      • Privacy
      • Terms & Coditions
      • Sitemap
      • Disclaimer