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the electromagnetic field interacts with the permanent magnet generating a force, which pushes the cone outwards the current is made to flow in the opposite direction the direction of the ...
This article was originally published with the title “ Powerful Electromagnet for the Use of Oculists ” in Scientific American Magazine Vol. 105 No. 26 (December 1911), p. 573 doi:10.1038 ...
Magnetic fields - CCEA Electromagnets. Magnetism and electromagnetism occur because of the magnetic fields around magnets and around electric currents.
China's Steady High Magnetic Field Facility has produced the highest ever recorded steady magnetic field using a hybrid electromagnet. Stock illustration of a strong magnet.