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Essa é da série componentes que enganam na bancada 👀 À primeira vista parece um capacitor… até a marcação lembra capacitor. Mas na verdade é um indutor radial. O código 102 indica 1 mH, e dentro dele existe uma bobina, como qualquer outro indutor. Na prática: No multímetro ele deve apresentar baixa resistência. Se aparecer circuito aberto, ele provavelmente está queimado. O teste ideal é medir a indutância com um LCR.
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⚡ Descarregar capacitor dando curto? Cuidado! Muita gente simplesmente encosta uma chave de fenda ou fio nos terminais para descarregar um capacitor. Pode até parecer que “funciona”, mas essa prática é perigosa e prejudicial para o componente. Quando o capacitor é descarregado em curto, ocorre um pico instantâneo de corrente, que pode gerar faísca, danificar trilhas, estressar o capacitor e até causar acidentes — principalmente em tensões mais altas, como 300V ou mais.
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Cargando
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