Applications and Devices

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What is a transformer and how does it use electromagnetic induction?

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.

What is the function of an inductor in electrical circuits?

An inductor is a passive component in electrical circuits that stores energy in its magnetic field when electricity flows through it.

How does electromagnetic induction apply to wireless charging?

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.

What is an AC motor and how does it apply electromagnetic induction?

An AC motor converts electrical energy into mechanical energy using alternating current, relying on electromagnetic induction to produce rotation.

What is eddy current and how can it be reduced?

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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