How does this scientist founded this electromagnet after further investigation?
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How does this scientist founded this electromagnet after further investigation?
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Electromagnetic induction was discovered by Michael Faraday, published in 1831. ... For example, he saw transient currents when he quickly slid a bar magnet in and out of a coil of wires, and he generated a steady (DC) current by rotating a copper disk near the bar magnet with a sliding electrical lead ("Faraday's disk").