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What is a transformer and how does it use electromagnetic induction?
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A transformer is a device that transfers electrical energy between two or more circuits through electromagnetic induction, typically used to increase ('step up') or decrease ('step down') voltage levels.
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What is the function of an inductor in electrical circuits?
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An inductor is a passive component in electrical circuits that stores energy in its magnetic field when electricity flows through it.
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How does electromagnetic induction apply to wireless charging?
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Wireless charging uses electromagnetic induction to transfer energy between two coils—a coil in the charging base and a coil in the device being charged.
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What is an AC motor and how does it apply electromagnetic induction?
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An AC motor converts electrical energy into mechanical energy using alternating current, relying on electromagnetic induction to produce rotation.
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What is eddy current and how can it be reduced?
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Eddy currents are loops of electric current induced within conductors by a changing magnetic field. They can be reduced by using laminated magnetic cores.
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