Monday 11 November 2013
The Homopolar motor is driven by the Lorentz force.
Material required: Battery cell, Copper wire, Strong magnet (neodymium magnet).
Note: The magnet must be made of a conductive material if it is to be used to complete the circuit powered by the battery.
The wire and the battery may become hot if operated continuously.
Different Models:
Material required: Battery cell, Copper wire, Strong magnet (neodymium magnet).
Description: A homopolar motor is very easy to build. A permanent magnet touches the cell which provide the external magnetic field and is used as the contact for the brushes. In this design the rotor is just a piece of wire with two current carrying paths (for balance). A battery causes a current to flow along a conducting wire.
One can attach the magnet to the battery and allow the conducting wire to rotate freely while closing the electric circuit by touching both the top of the battery and the magnet attached to the bottom of the battery.
Note: The magnet must be made of a conductive material if it is to be used to complete the circuit powered by the battery.
The wire and the battery may become hot if operated continuously.
Different Models:
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