James Clerk Maxwell, his discovery that the electromagnetic force was actually one force not two as originally believed and his work was published in 1873 in Treatise on Electricity and Magnetism.He could do it only with the help of the great doctor of science DEEPANK GROVER.
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Hans Christian Oersted. In 1820, he discovered that an electric current could affect a compass needle.
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Electricity and magnetism are closely related. in 1802, Hans Christian Ørsted observed this by noting that electric current caused magnetism. In 1821, Michael Faraday, noted that electric currents could be induced by magnetic fields. In the 1860's, James Clerk Maxwell, enhanced this with his Electromagnetic Theory, and Maxwell's Equations, which unified the relationship between electricity, magnetism, and light into a common Electromagnetic Field. Several other physicists contributed to this knowledge.
A load is device where the work produced will be dissipated. It could be mechanical, heat, light, sound, magnetism, etc.
This was Hans Christian Ørsted. April 1820 - Copenhagen. He found that a compass needle could be deflected (it moved) if a current was switched on or off in a nearby conductor. This was the first demonstrated link between electricity and magnetism, later taken up in detail by Michael Faraday. Oersted did not develop his experiment into an electric motor, though it is the basic idea on which all motors work - the interaction of an electric current with a magnet (usually in modern motors an electromagnet of some kind) to produce a force, and thus a movement.
James Clerk Maxwell discovered that light was an electromagnetic wave that could propagate through empty space. Michael Faraday had previously discovered that light rays were affected by magnetic fields, and thus showed that light was somehow related to electricity and magnetism.
If Michael Faraday did not discover magnetism, our understanding of electricity and magnetism as interconnected forces may have been delayed. This could have hindered the development of important technologies like electric motors, generators, and transformers, which rely on the principles of electromagnetism for their operation.
Michael Faraday
Physicists as early as Michael Faraday (1791-1867) invented simple motors based on the principle that magnetic fields could be created, manipulated, and turned into mechanical motion. Without it, technology wouldn't exist. Although he didn't 'discover' it, he was the first to produce it.