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Magnetic fields are regions surrounding magnets or electric currents where magnetic forces are exerted on moving charges and other magnetic materials. They are inseparably linked to electric fields, forming the electromagnetic force - one of nature's four fundamental forces. In the context of electromagnetic radiation, magnetic fields play a crucial role as oscillating magnetic fields generate varying electric fields, leading to the emission of electromagnetic waves. These interactions form the basis for understanding and harnessing various forms of electromagnetic radiation, from radio waves to gamma rays.