The Westminster motor kits reference article from the English Wikipedia on 24-Apr-2004
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Westminster motor kits

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Westminster motor kits are prefabricated kits for making educational motorss in school. They are available to buy from educational science suppliers and allow students to build their own motors from a couple of magnets and a meter or so of plastic coated wire.

The instructions that come with the kits are aimed at an adult readership so child friendly notes should be given to schoolchildren.

The most common causes for them not to work are:

See also: School physics experiments and demonstrations, Electric motors, How-to's