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mathematics

2 năm trước

Đáp án:

A = Pt = U.I.t

trong đó: U đo bằng Vôn (V)

I đo bằng ampe (A)

t đo bằng giây (s)

thì công A của dòng điện đo bằng jun (J)

1J = 1W.1s = 1V.1A.1s.

chiukiuxiu

2 năm trước

Đáp án:

A = Pt = U.I.t

Giải thích các bước giải:

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