Đáp án:
Ta dùng vôn kết:
`+GHĐ: 4V`
`+ ĐCNNN: 2,5V`
Đo chuẩn và chính xác hơn khi đo hiệu điện thế giữa `2` cực của `1` cục pin có ghi `3,2V`
Giải thích các bước giải:
Ta dùng vôn kế có GHĐ và ĐCNN là :
GHĐ: 4 V
ĐCNN: 0,1 V
ĐCNN càng nhỏ thì kết quả đo càng chính xác. GHĐ phải lớn hơn giá trị của cục pin.
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ko làm câu A ạ, mn làm giúp mk câu B thôi ạ~
Giúp mình với mình cảm ơn các bạn
Giúp với ý 1, 2, 3 mk biết làm r
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