electromagnetism

• 名词，指物理学中研究电与磁之间相互关系及电磁现象的分支学科，也指电流产生磁性的物理现象。

A noun referring to the branch of physics that studies the relationship between electricity and magnetism, as well as the physical phenomenon of magnetism produced by an electric current.

不可数

1. Magnetism from electric currentC1formalscientific

   A magnetic field created by the flow of an electric current through a conductor.

   电磁

   • Electromagnetism allows electric motors to convert electrical energy into motion.
   • The strength of an electromagnet increases with the number of wire coils.
   • Common devices like doorbells rely on electromagnetism to function.
   • A simple electromagnet can be made by wrapping wire around an iron core.

2. Branch of physicsC1formalscientific

   The scientific study of the interactions between electric and magnetic fields and their effects.

   物理学分支

   • Electromagnetism explains how light, radio waves, and X-rays travel.
   • The theory of electromagnetism was unified by James Clerk Maxwell in the 19th century.
   • Many modern technologies, from smartphones to MRI machines, rely on principles of electromagnetism.
   • Electromagnetism is one of the four fundamental forces of nature.

   同义词electromagnetics