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Where do electromagnets come from?

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Answered 2012-03-16 18:32:49

electromagnets are copper wound arond an iron core - if electricity is run though it~ from a battery or other power sorce it becomes a electromagnet.

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What do electromagnets look like?

Electromagnets come in multitudes of shapes and sizes. However, the most common electromagnets have copper wire wrapped around them that are energized when electricity is applied.

Why do you need electromagnets?

pick things upAnother AnswerElectromagnets are necessary for an electric motor to work. Electromagnets are used in ink jet printers to release ink, they activate relays and solenoids. Electromagnets are inside automotive fuel injectors. The old CRT televisions wouldn't work without some high powered electromagnets. Computers would be useless without electromagnets that operate disk drives and relays. Electromagnets are an essential part of all transformers.Essentially, modern technology would come to an end without electromagnets.

How does a telephone use electromagnets?

It is used for the soundwaves that come out of the ear piece :)

How are electromagnets used in a doorbell?

The electromagnets are in the chime. When the electromagnets are energized, the plunger hits the chime plate.

Do electromagnets affect glue?

Electromagnets do not affect glue.

How are electromagnets used?

Electromagnets are used in many ways. Televisions use electromagnets to direct the electron beam, whereas loudspeakers and earphones use electromagnets to push the diaphragm forwards.

Do food processors have electromagnets?

Yes, food processors do have electromagnets.

Are all electromagnets magnetic?

All electromagnets are magnetic when they are turned on.

How are electromagnets different from permanent magnet?

You can turn electromagnets on and off.

Are electromagnets considered permanent magnets'?

No. Electromagnets are temporary magnets.

Where use electromagnets?

Inside of electric motors are electromagnets and permanent magnets. In a metal junk yard large electromagnets are used to pick up metal. In MRI's large electromagnets are used for imaging.

What are the electromagnets called that are used at junkyards?

The electromagnets that are used in junkyards are called just that, electromagnets. They are used to sort out different types of metals.

How does a cell phone use electromagnets?

cell phones use electromagnets by ..........

Does an iron box use electromagnets?

no there is no use of electromagnets in iron box

Why are electromagnets better than ordinary magnets?

Electromagnets can be turned on and off at will.

How do trains levitate?

Electromagnets on the track repel electromagnets on the bottom of the train.

Do electric motors use electromagnets?

Electric motors do use electromagnets.

What are electromagnets made from?

electromagnets are made from coil and a powerpack this genarates electricity

What items in your home have electromagnets in them?

blenders have electromagnets in them. so do doorbells, so do speakers!!!

How do cat scans use electromagnets?

CAT Scan does not use electromagnets, its MRI (Magnetic Resonance Imaging) which uses Electromagnets to produce images of the patient's body.

What has the author D J Kroon written?

D. J. Kroon has written: 'Electromagnets' -- subject(s): Electromagnets 'Laboratory magnets' -- subject(s): Electromagnets

How are electromagnets used in a motor?

Electromagnets in motors are used to cause the motor to spin (rotate.)

What are the advantages of electromagnets against normal magnets?

Electromagnets can be switched on and off - normal magnets can't. Electromagnets are only magnetic while there is current flowing though the circuit.

What appliances have electromagnets?

I can only think of these appliances that has electromagnets. Microwave, Oven Toaster, Refregirator, and Freezer.

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