Engineering Materials and Applications | Electrical and Magnetic Materials by Pavan | Learn Smarter
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Electrical and Magnetic Materials

The chapter covers various types of electrical and magnetic materials, including conducting, resistive, semiconducting, magnetic, superconducting, dielectric, and smart materials. It highlights their properties and applications across various domains, such as automotive, aerospace, medical, and consumer electronics. Emphasizing the significance of these materials in technology, the chapter also illustrates their impact through practical examples and applications.

Sections

  • 1

    Conducting And Resisting Materials

    This section covers the types of materials classified as conductors and resistive materials, with their properties, applications, and significance.

    Learning Practice

  • 1.1

    Conductors

    Conductors are materials that enable the flow of electric current, essential for applications such as wiring and power transmission.

    Learning Practice

  • 1.2

    Resistors / Resistive Materials

    This section discusses resistors and resistive materials, focusing on their properties, applications, and common materials used.

    Learning Practice

  • 2

    Semiconducting Materials

    Semiconducting materials exhibit electrical conductivity between that of conductors and insulators, with intrinsic and extrinsic types playing vital roles in electronic applications.

    Learning Practice

  • 3

    Magnetic Materials

    This section describes magnetic materials, categorizing them into soft and hard magnetic types and explaining their characteristics and applications.

    Learning Practice

  • 3.1

    Soft Magnetic Materials

    Soft magnetic materials are easily magnetized and demagnetized, characterized by low coercivity and hysteresis loss, making them ideal for various applications.

    Learning Practice

  • 3.2

    Hard Magnetic Materials

    Hard magnetic materials are key components that retain magnetism, making them essential in various applications like motors and speakers.

    Learning Practice

  • 4

    Superconductors

    Superconductors are materials that exhibit zero electrical resistance and exhibit the Meissner effect below a critical temperature, enabling key applications in modern technology.

    Learning Practice

  • 5

    Dielectric Materials

    Dielectric materials are insulators that can store electric energy in the form of an electric field.

    Learning Practice

  • 6

    Smart Materials, Sensors, And Actuators

    Smart materials are unique substances that can change their properties in response to external stimuli, enabling a wide range of applications in technology.

    Learning Practice

  • 6.1

    Piezoelectric Materials

    Piezoelectric materials generate electric charge when mechanically stressed and vice versa, making them vital in various applications like sensors and actuators.

    Learning Practice

  • 6.2

    Magnetostrictive Materials

    Magnetostrictive materials change shape in response to magnetic fields, making them vital in precision applications.

    Learning Practice

  • 6.3

    Electrostrictive Materials

    Electrostrictive materials are materials that exhibit strain under the influence of an electric field, making them useful in applications like microactuators and smart sensors.

    Learning Practice

  • 7

    Applications Across Domains

    This section outlines the various applications of electrical and magnetic materials across different industries.

    Learning Practice

References

Module VI_ Electrical and Magnetic Materials.pdf

Class Notes

Memorization

What we have learnt

  • Conductors have high electr...
  • Semiconductors have variabl...
  • Magnetic materials are cate...

Final Test

Revision Tests