Hand Driven Generator Unit Tax on Sales 0% bold colours
$137.99
Description
bold colours
Tilt and turn the tubes to watch the mesmerising movement
the ruler easily folds to a compact size for easy storage
these tough balls will take repeat smashes
Hand Driven Generator Unit Tax on Sales 0% bold coloursFor demonstrating the variation of electrical output of a dynamo with its rate of rotation and the way in which the electrical load connected to it affects the amount of work required to drive it. The double stage step up gear system gives an overall ratio of approximately 1: 25.
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