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electromagnetism    音标拼音: [ɪl,ɛktrom'ægnət,ɪzəm]
n. 电磁,电磁学

电磁,电磁学

electromagnetism
n 1: magnetism produced by an electric current;
"electromagnetism was discovered when it was observed that
a copper wire carrying an electric current can magnetize
pieces of iron or steel near it"
2: the branch of physics concerned with electromagnetic
phenomena [synonym: {electromagnetism}, {electromagnetics}]

Electro-magnetism \E*lec`tro-mag"net*ism\ n.
1. magnetism produced by an electric current.
[WordNet 1.5]

2. one of the fundamental forces of nature, responsible for
both electrical and magnetic phenomena. Called also the
{electromagnetic force}. Formerly believed to be separate
phenomena, electricity and magnetism were shown by
experiment and theory to be different aspects of the
{electromagnetic force}. It is responsible for the forces
generated between magnetically or electrically charged
objects, and is the fundamental force responsible for the
characteristics of electromagnetic radiation, including
light.
[PJC]

3. the branch of physics concerned with electromagnetic
phenomena.
[WordNet 1.5]


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  • Electromagnetism - Wikipedia
    Electromagnetism describes and relates the three distinct but closely intertwined phenomena of electricity, magnetism, and optics In, electromagnetism these phenomena are described by the 3 sub-disciplines: electrostatics, magnetostatics, and electrodynamics
  • Electromagnetism | Definition, Equations, Facts | Britannica
    Electromagnetism, science of charge and of the forces and fields associated with charge Electricity and magnetism are two aspects of electromagnetism Electric and magnetic forces can be detected in regions called electric and magnetic fields Learn more about electromagnetism in this article
  • The Basics of Electromagnetism
    Electromagnetism is the force behind light waves, is the source of energy that holds atoms together, and also generates magnetic fields from electric currents All matter has an electric charge which can either be positive or negative
  • Understanding Electromagnetism | Key Principles Applications
    Explore the fundamentals of electromagnetism, including Maxwell's equations, applications in technology, and the electromagnetic spectrum
  • Introduction to electromagnetism - Wikipedia
    Electromagnetism is one of the fundamental forces of nature alongside gravity, the strong force and the weak force Whereas gravity acts on all things that have mass, electromagnetism acts on all things that have electric charge
  • Electromagnetism - GeeksforGeeks
    What is Electromagnetism? Electromagnetism is the fusion of electric and magnetic forces, governing the behavior of charged particles Electric fields arise from stationary charges, exerting forces on other charges, while magnetic fields originate from moving charges or magnetic materials
  • DOE Explains. . . The Electromagnetic Force - Department of Energy
    Electromagnetism is only one hundredth the strength of the strong force Unlike the strong force, it works over any distance Scientists describe how electromagnetism interacts with particles using a theory called quantum electrodynamics
  • Electromagnetism 101 - Education
    Electromagnetism is one of the four fundamental forces of nature Learn about the relationship between electricity and magnetism, the different wavelengths on the electromagnetic spectrum, and how an invisible force protects our entire planet
  • Electromagnetism: What It Is, Force, Energy, Fields Examples
    Electromagnetism is the branch of physics that studies the interaction between electric charges and magnetic fields It is actually one single unified force — not two separate ones Electricity and magnetism are two sides of the same coin When electric charges move, they create magnetic fields
  • Electromagnetic Theory | MIT Learn
    Electromagnetic Theory covers the basic principles of electromagnetism: experimental basis, electrostatics, magnetic fields of steady currents, motional e m f and electromagnetic induction, Maxwell’s equations, propagation and radiation of electromagnetic waves, electric and magnetic properties of matter, and conservation laws This is a graduate level subject which uses appropriate





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