← 3.3 Introduction to electronics

Semiconductors, doping and where they are used

Physics · Grade 10 · about 40 minutes

How adding a trace of an impurity turns silicon into the most useful material in modern technology.

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  • 13 sections of explanation, worked examples and diagrams
  • 2 practice tasks with hints and worked answers
  • A quiz that marks itself as you go
  • Your progress kept across every subject you take
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