Magnetism | Definition, Examples, Physics, & Facts | Britannica
6 天之前 · Magnetism, phenomenon associated with magnetic fields, which arise from the motion of electric charges. It can be an electric current in a conductor or charged particles moving …
Electromagnetism - Induction, Faraday, Magnetism | Britannica
While the mainstream of theoretical activity concerning electric and magnetic phenomena during the 19th century was devoted to showing how they are interrelated, some scientists made use …
magnetism summary | Britannica
magnetism, Phenomenon associated with magnetic fields, the effects of such fields, and the motion of electric charges. Some types of magnetism are diamagnetism, paramagnetism, …
Nuclear magnetic resonance (NMR) | Britannica
2025年1月10日 · Nuclear magnetic resonance (NMR), selective absorption of very high-frequency radio waves by certain atomic nuclei that are subjected to an appropriately strong stationary …
The effect of temperature on magnetic properties explained
Study the phenomena of ferromagnetism, antiferromagnetism, and paramagnetism and also how temperature affects magnetic properties
Solar Wind, Earth’s Shield & Magnetic Field - Britannica
Magnetosphere, region in the atmosphere where magnetic phenomena and the high atmospheric conductivity caused by ionization are important in determining the behaviour of charged …
Magnetic resonance | Physics, Medical Imaging & Diagnostics
magnetic resonance, absorption or emission of electromagnetic radiation by electrons or atomic nuclei in response to the application of certain magnetic fields. The principles of magnetic …
Electromagnetism | Definition, Equations, & Facts | Britannica
2024年10月30日 · Electromagnetism, science of charge and of the forces and fields associated with charge. Electricity and magnetism are two aspects of electromagnetism. Electric and …
Magnetic fields and forces - Encyclopedia Britannica
Electromagnetism - Magnetic Fields, Forces, Interactions: The magnetic force influences only those charges that are already in motion. It is transmitted by the magnetic field. Both magnetic …
Definition, Cause, Examples, Uses, & Facts - Britannica
2024年12月27日 · Ferromagnetism, physical phenomenon in which certain electrically uncharged materials strongly attract others. Two materials found in nature, lodestone (or magnetite, an …