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Physics, 30.10.2021 21:40 alaina05

1 bóng đèn có ghi 220V-75W được thắp sáng liên tục với hiệu điện thế 220V trong 4 giờ. Tính lượng điện năng mà bóng đèn này sử dụng và số đếm của công tơ trong trường hợp này

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1 bóng đèn có ghi 220V-75W được thắp sáng liên tục với hiệu điện thế 220V trong 4 giờ. Tính lượng đi...
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