About This Chapter
Electrodynamics - Chapter Summary
Electrodynamics examines the ways electric currents interact with one another and magnetic fields. Take a close look at this concept by reviewing the lessons in this chapter. You can better understand different types of polarization and the polarization of waves. Assess your knowledge by taking short multiple-choice quizzes and a practice chapter exam. Lessons, quizzes and the exam are accessible from any computer, smartphone or tablet. After taking advantage of these resources, you will be able to:
- Define and utilize the equation for linear polarization
- Understand the meaning of and equation for circular polarization
- Identify types and units of electric polarization
- Discuss the meaning and types of polarization of waves
1. Ferromagnetism: Definition & Examples
This lesson explores ferromagnetism, the ability of a material to produce a magnetic field all by itself. We discuss which common materials are ferromagnetic, why these materials are ferromagnetic while others aren't, how processes inside the material actually create the magnetic field, and more.
2. Band Gap: Definition & Energy Formula
This lesson describes the concept of band gap as it relates to electrical conduction in materials. The concepts of valence and conduction bands are discussed. The difference in band gaps between conductors, insulators and semiconductors is discussed. A formula for calculating the band gap for semiconductors is shown.
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Other chapters within the Introduction to Engineering course
- Materials & Properties in Engineering
- Stress & Strain in Engineering
- Temperature & Heat in Engineering
- Tools & Processes in Engineering
- Pressure in Engineering
- Tolerance in Engineering
- Basics of Structural Engineering
- Basics of Chemical Engineering
- Electricity in Engineering
- Physics Concepts in Engineering
- Acoustics in Engineering
- Building Construction & Properties in Engineering
- Electrical Interference in Engineering