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
Navigate through the learning materials and practice exercises.
What we have learnt
- Conductors have high electrical conductivity and are essential for power transmission.
- Semiconductors have variable conductivity that enables their use in electronic components.
- Magnetic materials are categorized into soft and hard types, with distinct applications.
Key Concepts
- -- Conductors
- Materials with high electrical conductivity, such as copper and aluminum, used in wiring and power transmission.
- -- Semiconductors
- Materials with conductivity between conductors and insulators, utilized in diodes, transistors, and ICs.
- -- Superconductors
- Materials that conduct electricity with zero resistance and expel magnetic fields below a specific critical temperature.
- -- Magnetic Materials
- Includes soft magnetic materials, which can be easily magnetized and demagnetized, and hard magnetic materials, which retain their magnetism.
- -- Dielectric Materials
- Insulators that store electric energy in an electric field, used in capacitors and RF devices.
- -- Smart Materials
- Materials that respond to external stimuli by altering their properties, including piezoelectric and electrostrictive materials.
Additional Learning Materials
Supplementary resources to enhance your learning experience.