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.
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.
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.
It is used for the soundwaves that come out of the ear piece :)
The electromagnets are in the chime. When the electromagnets are energized, the plunger hits the chime plate.
Electromagnets do not affect glue.
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.
Yes, food processors do have electromagnets.
All electromagnets are magnetic when they are turned on.
You can turn electromagnets on and off.
No. Electromagnets are temporary magnets.
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.
The electromagnets that are used in junkyards are called just that, electromagnets. They are used to sort out different types of metals.
cell phones use electromagnets by ..........
no there is no use of electromagnets in iron box
Electromagnets can be turned on and off at will.
Electromagnets on the track repel electromagnets on the bottom of the train.
Electric motors do use electromagnets.
electromagnets are made from coil and a powerpack this genarates electricity
blenders have electromagnets in them. so do doorbells, so do speakers!!!
Electromagnets can be turned on and off.
CAT Scan does not use electromagnets, its MRI (Magnetic Resonance Imaging) which uses Electromagnets to produce images of the patient's body.
D. J. Kroon has written: 'Electromagnets' -- subject(s): Electromagnets 'Laboratory magnets' -- subject(s): Electromagnets
Electromagnets in motors are used to cause the motor to spin (rotate.)
Electromagnets can be switched on and off - normal magnets can't. Electromagnets are only magnetic while there is current flowing though the circuit.
I can only think of these appliances that has electromagnets. Microwave, Oven Toaster, Refregirator, and Freezer.