Homopolar Motor Kit

An Homopolar Motor is the Simplest DC Electric Motor, Invented by Michael Faraday in 1821.

The homopolar motor was the first ever device to produce rotation from electromagnetism itself.

 It was first built and demonstrated by Michael Faraday in 1821 at the Royal Institution in London.



An homopolar motor has a magnetic field along the axis of rotation and an electric current that at some point is not parallel to the magnetic field. The name homopolar refers to the absence of polarity change.

Faraday's greatest work was with electricity. In 1821, soon after the Danish chemist, Hans Christian Orsted, discovered the phenomenon of magnetism, Humphry Davy and William Hyde Wollaston tried but failed to design an electric motor. Faraday, having discussed the problem with the two men, went on to build two devices to produce what he called electromagnetic rotation which is a continuous circular motion from the circular magnetic force around a wire. A wire extending into a pool of mercury with a magnet placed inside would rotate around the magnet if charged with electricity by a chemical battery. This device is known as a homopolar motor. These experiments and inventions form the foundation of modern electromagnetic technology. Unwisely, Faraday published his results without acknowledging his debt to Wollaston and Davy, and the resulting controversy caused Faraday to withdraw from electromagnetic research for several years.

Faraday Magnetic Rotation Homopolar Motor

The motors were constructed using metal wire suspended in a cup of mercury. Stick up from the bottom of the cup was a permanent magnet.


We are improving the Homopolar Motor Kit Store, it will be back in few days.

This WebSite is Promoted by
 Afforda Internet Marketing

Related Searches:
homopolar motor kit, dc motor kit, electric motor kit, magnets motor, magnetic field, how to make an electric motor, make homopolar motor, Michael Faraday, stirling, stirling engine, motor stirling, stirling motor, homopolarmotorkit.com