Study of Magnetic levitation and levitation of an object electromagnetically via magnetic suspension

Authors

  • Pardeep Lamba Research Schoolar
  • Ankit

Keywords:

counteracting, levitation, Earnshaw

Abstract

Magnetic levitation is the process of levitating an object by exploiting magnetic fields. In other words, it is overcoming the gravitational force on an object by applying a counteracting magnetic field. Either the magnetic force of repulsion or attraction can be used. In the case of magnetic attraction, the experiment is known as magnetic suspension. Using magnetic repulsion, it becomes magnetic levitation. In the past, magnetic levitation was attempted by using permanent magnets. Attempts were made to find the correct arrangement of permanent magnets to levitate another smaller magnet, or to suspend a magnet or some other object made of a ferrous material. It was however, mathematically proven by “Earnshaw” that a static arrangement of permanent magnets or charges could not stably magnetically levitate an object Apart from permanent magnets, other ways to produce magnetic fields can also be used to perform levitation. One of these is an electrodynamic system, which exploits Lenz’s law. When a magnet is moving relative to a conductor in close proximity, a current is induced within the conductor. This induced current will cause an opposing magnetic field. This opposing magnetic field can be used to levitate a magnet. This means of overcoming the restrictions identified by Earnshaw is referred to as oscillation.

References

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Published

30-06-2016

How to Cite

Pardeep Lamba, & Ankit. (2016). Study of Magnetic levitation and levitation of an object electromagnetically via magnetic suspension. International Journal for Research Publication and Seminar, 7(3). Retrieved from https://jrps.shodhsagar.com/index.php/j/article/view/707

Issue

Vol. 7 No. 3 (2016): Apr - Jun 2016

Section

Original Research Article

License

Copyright (c) 2016 International Journal for Research Publication and Seminar

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