Fleming: Left or Right Hand?

Posted in A2 Unit 4: Magnetic Fields, AQA A2 Unit 4 by Mr A on 21 Feb 2010

Fleming, like most people, had two hands. Unlike most, he had a rule for each. But when should you use the left, and when the right?

 

LEFT HAND RIGHT HAND
A motion occurs due to the current. To work out what direction this motion is in, use the Left Hand Rule. A current is induced in the wire due to the applied motion. To find out in what direction this current flows, use the Right Hand Rule.

 

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Transformers

Posted in A2 Unit 4: Magnetic Fields, AQA A2 Unit 4 by Mr A on 11 Nov 2009
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Extras

Try out a transformer demo applet

TED talk on Wireless Electricity: