Absorb Electronics by Dr Bill Phillips

How an NPN transistor works

Added by Bill Phillips on Feb 20, 2008

An animation showing how an NPN transistor works. Click the arrow button to close the circuit and show how the negative charge carriers in the n-type semiconductor layer and the positive charge carriers in the p-type layer form a current.

This resource is from the unit Transistors which is part of Absorb Electronics.

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