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Physics, 01.07.2021 02:50 gehdmoe2

Đặt vào 2 đầu R1 hiệu điện thế U1=60V thì I1=2,5A .Đặt vào 2 đầu R2 hiệu điện thế U2=U1 thì I2=7,5 A .So sánh R1 và R2

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Đặt vào 2 đầu R1 hiệu điện thế U1=60V thì I1=2,5A .Đặt vào 2 đầu R2 hiệu điện thế U2=U1 thì I2=7,5 A...
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