Who is credited with discovering electromagnetic induction?

Who is credited with discovering electromagnetic induction?

• A. Michael Faraday
• B. James Clerk Maxwell
• C. Marie Curie
• D. Niels Bohr

Answer: (A)

Electromagnetic induction is the generation of an electric current in a conductor when the magnetic environment around it changes. This was demonstrated by Michael Faraday in 1831 through simple experiments like moving a magnet in and out of a coil and rotating magnets near a loop. He showed that a changing magnetic flux through a circuit creates an electromotive force (EMF) in the wire, which drives current. This led to Faraday’s law of induction, which states that the induced EMF is proportional to the rate of change of magnetic flux (and is directed to oppose the change in flux, as described by Lenz’s law). Although James Clerk Maxwell later wove these ideas into his comprehensive equations and unified electricity and magnetism, the credited discovery of electromagnetic induction itself goes to Faraday. The other figures listed contributed in other areas of physics, but not this experimental finding.

Electromagnetic induction is the generation of an electric current in a conductor when the magnetic environment around it changes. This was demonstrated by Michael Faraday in 1831 through simple experiments like moving a magnet in and out of a coil and rotating magnets near a loop. He showed that a changing magnetic flux through a circuit creates an electromotive force (EMF) in the wire, which drives current. This led to Faraday’s law of induction, which states that the induced EMF is proportional to the rate of change of magnetic flux (and is directed to oppose the change in flux, as described by Lenz’s law). Although James Clerk Maxwell later wove these ideas into his comprehensive equations and unified electricity and magnetism, the credited discovery of electromagnetic induction itself goes to Faraday. The other figures listed contributed in other areas of physics, but not this experimental finding.