What Are Common Uses of Electromagnets?
An MRI is just one example of the uses of electromagnets. medicina_nuclear-15 image by Paco Ayala from Fotolia.com Electromagnets have any number of applications in modern technology. You can find electromagnets in all kinds of electronic equipment, including many of the devices you use every day. They also are used in medicine and in industry. In fact, it’s fair to say that electromagnets are what has made the majority of modern technology possible: they allow electricity to be used as a force, just as wind and water are. Motors The electromagnet is the key component of an electric motor. The drive shaft of the motor is attached to an armature with one or more coils of wire wrapped around it. This creates an electromagnet. A field magnet is used to create a steady magnetic field with a fixed polarity. When the motor is turned on, the forces between the electromagnets and the field magnet drive the shaft around, creating movement. Speakers Usually the magnet in a speaker is a permanent
