Magnetic field

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In magnetism and electromagnetism, magnetic field is a physical property of space that quantifies the magnetic influence at a given location. Magnetic fields deflect moving electric charges (including electric currents) apply torques on magnets to twist them in the direction of the magnetic field attract or repel magnets and magnetic material such as iron induce electric currents in electrically conducting material. Magnetic fields are created by permanent magnetic materials moving electric charges (including electric current). Magnetic fields are used throughout modern science and technology. In electrical engineering and electromechanics, it is important in the design and use of electric motors, generators, transformers, electromagnets, and inductors among many other devices. In material science, magnetic forces give information about the charge carriers in a material through the Hall effect in addition to other uses. In geology and geophysics, Earth's magnetic field gives information...

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