One of the four known basic forces in the universe. Electromagnetism is responsible for interactions between charged particles that occur because of their charge, and for the emission and absorption of photons (electromagnetic radiation). The phenomena of electricity and magnetism are consequences of this force, and the relationships between them were first described by James Clerk Maxwell in the 1860s. The physical description of electromagnetism has since been combined with quantum mechanics into the theory of quantum electrodynamics. The electromagnetic force is about 1036 times as strong as the gravitational force (see gravitation), but significantly weaker than both the weak force and the strong force.
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In physics, the electromagnetic force is the force that the electromagnetic field exerts on electrically charged particles. It is the electromagnetic force that holds electrons and protons together in atoms, and which hold atoms together to make molecules. The electromagnetic force operates via the exchange of messenger particles called photons and virtual photons. The exchange of messenger particles between bodies acts to create the perceptual force whereby instead of just pushing or pulling particles apart, the exchange changes the character of the particles that swap them.
Originally, electricity and magnetism were thought of as two separate forces. This view changed, however, with the publication of James Clerk Maxwell's 1873 Treatise on Electricity and Magnetism in which the interactions of positive and negative charges were shown to be regulated by one force. There are four main effects resulting from these interactions, which have been clearly demonstrated by experiment:
It is not the electromagnetic force but rather the strong nuclear force that holds together the nucleus of an atom.
The electromagnetic force is one of the four fundamental forces. The other fundamental forces are: the strong nuclear force (which holds quarks together, along with its residual strong force effect that holds atomic nuclei together to form the nucleus), the weak nuclear force (which causes certain forms of radioactive decay), and the gravitational force. All other forces are ultimately derived from these fundamental forces.
The electromagnetic force is the one responsible for practically all the phenomena one encounters in daily life, with the exception of gravity. Roughly speaking, all the forces involved in interactions between atoms can be traced to the electromagnetic force acting on the electrically charged protons and electrons inside the atoms. This includes the forces we experience in "pushing" or "pulling" ordinary material objects, which come from the intermolecular forces between the individual molecules in our bodies and those in the objects. It also includes all forms of chemical phenomena, which arise from interactions between electron orbitals.
US Patent Issued to Shimadzu on Oct. 25 for "Electronic Balance Including Linking Member Connected Between Fulcrum and Electromagnetic Force Generating Apparatus" (Japanese Inventor)
Oct 29, 2011; ALEXANDRIA, Va., Oct. 29 -- United States Patent no. 8,044,308, issued on Oct. 25, was assigned to Shimadzu Corp. (Kyoto, Japan)....
Patent Application Titled "Weighing Cell Based on the Principle of Electromagnetic Force Compensation with Optoelectronic Position Sensor" Published Online
Sep 19, 2013; By a News Reporter-Staff News Editor at Politics & Government Week -- According to news reporting originating from Washington,...
Wipo Publishes Patent of Hitachi Automotive Systems, Motoyuki Abe, Hiroyuki Ota, Hideharu Ehara, Masahiro Soma and Ryo Kusakabe for "Electromagnetic Force Utilization Device" (Japanese Inventors)
Aug 30, 2013; GENEVA, Aug. 30 -- Publication No. WO/2013/124890 was published on Aug. 29.Title of the invention: "ELECTROMAGNETIC FORCE...