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Which fundamental force is carried by photons?
Quick Answer
Electromagnetism is carried by photons. It governs electricity, magnetism, light, and the structure of atoms.
The Full Story
The electromagnetic force is transmitted by photons, the massless particles of light. It acts between electrically charged particles and is responsible for everything from chemical bonds to lightning and radio waves. Unlike gravity, it can attract or repel, depending on the charges involved. James Clerk Maxwell unified electricity and magnetism in the 19th century, and quantum electrodynamics later described the force with extraordinary precision.
Key Facts
1.The photon is the force carrier of electromagnetism
2.Maxwellβs equations were developed in the 1860s
3.QED is among the most precisely tested theories in physics
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"The force that gives us light, magnets, and chemistry"
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