Shake-a-Gen

View Shake-a-Gen Hare shake a gen

Presenter: Jonathan Hare

Published: March 2009

Age: 11-14 and upwards

Views: 1072 views

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Type: Lectures

Source/institution: Vega

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This is a simple yet effective demonstration of electricity generation. 500 turns of wire are wound onto a 35mm film can and the two ends are attached to an LED light. A strong magnet is placed in the can and the lid fixed back in place. The generator is based on the principle of Faraday induction where a changing magnetic field creates (induces) a voltage in a coil of wire. Shaking the can causes the magnetic field to change with time and so generates electricity in the coil – the LED lights!

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