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Physics, 12.09.2021 08:30 angeline2004

Dòng điện đi qua một dây dẫn có cường độ I1 khi hiệu điện thế giữa hai đầu dây là 12V. Để dòng điện này có cường độ I2 nhỏ hơn I1 một lượng là 0,6I1 thì phải đặt giữa hai đầu dây dẫn này một hiệu điện thế là bao nhiêu?

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Dòng điện đi qua một dây dẫn có cường độ I1 khi hiệu điện thế giữa hai đầu dây là 12V. Để dòng điện...
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