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An electromagnet is a temporary magnet created when an electric current flows through a coil of wire, generating a magnetic field. Its strength can be controlled by adjusting the amount of current flowing through the coil. Electromagnets can vary in size and shape, making them versatile for a wide range of applications.

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1y ago

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What kind of magnet can vary its strength and polarity?

An electromagnet can vary its strength and polarity by controlling the flow of electric current through its coil. By changing the direction and intensity of the electrical current, an electromagnet can easily adjust its magnetic field characteristics.


Which is better a permanent magnet or an electromagnet?

electromagnet


An electromagnet becomes storgner when the?

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What does an electromagnet operator do to release metal attached to the electromagnet?

An electromagnet operator can release metal attached to the electromagnet by turning off the electric current flowing through the electromagnet coils. This de-energizes the electromagnet, causing the magnetic field to dissipate and the metal object to fall off.


What is a magnet made by electric current?

An electromagnet.


What does an electromagnet operator do to release metal attached to an electromagnet?

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Why electromagnet is used for separating plastic bags?

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Why electromagnet is different from a permanent magnet because an electromagnet what?

Mainly in that the electromagnet is NOT permanent. In other words, it can be switched on and off.Another relevant difference is that the electromagnet constantly requires power, at least while it is on.


Who built the first electromagnet?

Linc Robinson built the first electromagnet.


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The electromagnet was invented in the year 1850 by william sturgeon :)


What is the difference between electromagnetism and electromagnet?

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An advantage of an electromagnet (in contrast to a bar magnet) is?

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