释义 |
electromagnetism
e·lec·tro·mag·net·ism E0077500 (ĭ-lĕk′trō-măg′nĭ-tĭz′əm)n.1. The physics of electricity and magnetism.2. An interaction between electricity and magnetism, as when an electric current or a changing electric field generates a magnetic field, or when a changing magnetic field generates an electric field.electromagnetism (ɪˌlɛktrəʊˈmæɡnɪˌtɪzəm) n1. (General Physics) magnetism produced by an electric current2. (General Physics) Also called: electromagnetics the branch of physics concerned with magnetism produced by electric currents and with the interaction of electric and magnetic fieldse•lec•tro•mag•net•ism (ɛˌlɛk troʊˈmæg nɪˌtɪz əm) n. 1. the phenomena associated with electric and magnetic fields and their interactions with each other and with electric charges and currents. 2. the science that studies these phenomena. [1820–30] e·lec·tro·mag·net·ism (ĭ-lĕk′trō-măg′nĭ-tĭz′əm)1. Magnetism produced by electric charge in motion. See Note at magnetism.2. The scientific study of electricity and magnetism and the relationships between them.electromagnetismThe study of electric and magnetic fields and their interaction.ThesaurusNoun | 1. | electromagnetism - 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"magnetic attraction, magnetic force, magnetism - attraction for iron; associated with electric currents as well as magnets; characterized by fields of force | | 2. | electromagnetism - the branch of physics concerned with electromagnetic phenomenaelectromagneticsnatural philosophy, physics - the science of matter and energy and their interactions; "his favorite subject was physics" | Translationselectromagnetism
electromagnetism1. magnetism produced by an electric current 2. the branch of physics concerned with magnetism produced by electric currents and with the interaction of electric and magnetic fields Electromagnetism The branch of science dealing with the observations and laws relating electricity to magnetism. Electromagnetism is based upon the fundamental observations that a moving electric charge produces a magnetic field and that a charge moving in a magnetic field will experience a force. The magnetic field produced by a current is related to the current, the shape of the conductor, and the magnetic properties of the medium around it by Ampère's law. The magnetic field at any point is described in terms of the force that it exerts upon a moving charge at that point. The electrical and magnetic units are defined in terms of the ampere, which in turn is defined from the force of one current upon another. The association of electricity and magnetism is also shown by electromagnetic induction, in which a changing magnetic field sets up an electric field within a conductor and causes the charges to move in the conductor. See Eddy current, Electricity, Electromagnetic induction, Faraday's law of induction, Hall effect, Inductance, Lenz's law, Reluctance electromagnetism[i¦lek·trō′mag·nə‚tiz·əm] (physics) Branch of physics relating electricity to magnetism. Magnetism produced by an electric current rather than by a permanent magnet. electromagnetism
electromagnetism [e-lek″tro-mag´nĕ-tizm] magnetism developed by an electric current.electromagnetism (ē-lĕk″trō-măg′nĕ-tĭzm) Magnetism produced by an electric current. electromagnetism Related to electromagnetism: Electromagnetic force, Electromagnetic inductionSynonyms for electromagnetismnoun magnetism produced by an electric currentRelated Words- magnetic attraction
- magnetic force
- magnetism
noun the branch of physics concerned with electromagnetic phenomenaSynonymsRelated Words- natural philosophy
- physics
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