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单词 magnetic field
释义

magnetic field

noun
A region around a magnetic material or a moving electric charge within which the force of magnetism acts.Electrons produce a small magnetic field as they spin and orbit the nucleus of an atom....
  • Sunspots are whirling masses of electrically charged gas formed by magnetic fields deep within the Sun.
  • Similarly, if you move a magnet near a wire, the magnetic field will cause electrons in the wire to move.
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更新时间:2024/11/11 7:46:01