Applications of Electromagnets
created a great revolution in the field of engineering applications. In
addition, this has caused a great impact on various fields such as medicine,
industries, space etc.
Inside the speaker, the
electromagnet is placed in front of a permanent magnet. The permanent magnet is
xed rmly in position whereas the electromagnet is mobile. As pulses of
electricity pass through the coil of the electromagnet, the direction of its
magnetic field is rapidly changed. is means that it is in turn attracted to and
repelled from the permanent magnet vibrating back and forth. The electromagnet
is attached to a cone made of a exible material such as paper or plastic which
ampli es these vibrations, pumping sound waves into the surrounding air towards
(Maglev) is a method by which an object is suspended with no support other than
magnetic fields. In maglev trains two sets of magnets are used, one set to
repel and push the train up off the track, then another set to move the
floating train ahead at great speed without friction. In this technology, there
is no moving part. The train travels along a guideway of magnets which controls
the trainâ€™s stability and speed using the basic principles of magnets.
fields play a key role in advanced medical equipments such as hyperthermia
treatments for cancer, implants and magnetic resonance imaging (MRI). In a,
sophisticated equipments working based on the electromagnetism can scan minute
details of the human body.
Many of the medical
equipments such as scanners, x-ray equipments and other equipments also use
principle of electromagnetism for their functioning.