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alessandrosnts
modified 4 years ago

Ligar Led com NPN

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1
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00:58:27
Ligar led com npn ou dedo
published 4 years ago
Robert_Kidd
4 years ago
Your base resistor is too small so you are wasting current. Increase to 15k. When the switch is open the transistor base is floating. Connect a 100k resistor from base to ground.

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