How to develop the alternating magnetic field

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The magnets used in Galileo is, needless to say, very powerful ones, the best way to have a super-strong, controllable magnet is with an electrical current. When that current is properly coiled around a magnetic metal, this creates an electromagnet, which can be used in a variety of applications. How to develop the alternating magnetic field?

Reference no: EM132521789

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When that current is properly coiled around a magnetic metal : When that current is properly coiled around a magnetic metal, this creates an electromagnet, which can be used in a variety of applications

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