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how does the transister works

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sam_h

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How a transistor works

A transistor is a semiconductor which means that it will only conduct under certain conditions. In a NPN transistor electrons will be taken be atoms in the semiconductor in the Gate leg until the atoms have full electron shells and electrons entering the transistors can flow freely.

I think this is right, as i just saw it on the Royal Institute Xmas Lectures.
 
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