21 julho, 2011


Resumo

Aqui vamos ensinar a você a fazer um motor elétrico básico, bem básico mesmo que pode ser feito em menos 30 segundos com uma potência de até 10.000 RPM (rotações por minuto).

Você precisa de

1 parafuso simples;

1 pilha alcalina tamanho grande (1.5V);

1 fio de cobre (condutor) de aproximadamente 8 polegadas;

1 ímã de neodímio.

Passos

Seu funcionamento é muito simples. Basta juntar o ímã de neodímio à base do parafuso. Feito isso, coloque a ponta do parafuso no pólo positivo da pilha, pressionando uma ponta do fio de cobre no lado oposto da pilha (pólo negativo).

Após este procedimento, considere seu motor elétrico praticamente finalizado! Para dar a "ignição", basta tocar o ímã de neodímio com a outra ponta do fio de cobre e então o parafuso dará voltas o suficiente para estampar um sorriso em seu rosto

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