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Esses cálculos são válidos para o circuito em série, em que a corrente é igual em todos os elementos. Como aqui só ligamos 1 led e sabemos que a corrente do LED é 20mA, fica fácil calcular. Nesta caso o resistor precisa consumir 9V. E para saber qual o valor dele, basta dividir os 9V pela corrente do LED. A corrente do resistor também será 20mA, já que ele está em série com o LED. Lembrando que cada LED possui suas próprias características de tensão e corrente. Link do curso na bio do perfil
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5 passos para você começar na eletrônica. Essa é nossa sugestão, foi por onde começamos há quase 2 décadas atrás. O link do Módulo Zero está na bio, em breve terá mais informações e nos próximos dias o acesso a ele será liberado. Ele é gratuito, tem 35 aulas que abrange assuntos como a eletricidade, componentes, análises de circuitos, projeto, reparos e muito mais. Também terá apostila e certificado de conclusão. O curso usa um método inovador que utiliza recursos gráficos 3D #diodos
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