Product Overview
This set consists of a Barlow's Wheel and Faraday's disc.
Barlow's Wheel
Historical experiment, an early version of a homopolar motor. Demonstrates the interplay between electric and magnetic forces. Operates on 2 AA size batteries. This unit usually is demonstrated together with the Faraday's disk, which is an early version of a homopolar generator.
Faraday’s Disk
The Faraday’s disk is, the earliest example of a DC electrical generator, also known as a homopolar generator. A copper disc with a turning handle rotates between two poles of a horseshoe magnet mounted on base with two terminals, one of which is connected to a pillar supporting the disc and the other to a brush bearing on edge of the disc. By turning the hand crank, an electrical current is generated, and the voltage difference can be detected by connecting a voltmeter to the terminals.
