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Post Closed as "Duplicate" by ocrdu, winny, Andy aka, JYelton, Elliot Alderson
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ocrdu
ocrdu
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theThe problem saysays that an ammeter has 30mAa 30 mA upper measurement limit and its accuracy class is 2%. for

For the relative measurement error whilewhen measuring 22mA22 mA, iI found it 2is2,7%. I used the formula h(%)=hop*30 = hop*30/22  , but for the range of uncertainty I'm not sure if I can use H=[hH = [h(%)/100]*22 because the word range make"range" makes me confused.

the problem say that an ammeter has 30mA upper measurement limit and its accuracy class is 2%. for the relative measurement error while measuring 22mA, i found it 2,7%. I used the formula h(%)=hop*30/22  , but for the range of uncertainty I'm not sure if I can use H=[h(%)/100]*22 because the word range make me confused

The problem says that an ammeter has a 30 mA upper measurement limit and its accuracy class is 2%.

For the relative measurement error when measuring 22 mA, I found it is2,7%. I used the formula h(%) = hop*30/22, but for the range of uncertainty I'm not sure if I can use H = [h(%)/100]*22 because the word "range" makes me confused.

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houria mawahib
houria mawahib
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Find the range of uncertainty?

the problem say that an ammeter has 30mA upper measurement limit and its accuracy class is 2%. for the relative measurement error while measuring 22mA, i found it 2,7%. I used the formula h(%)=hop*30/22 , but for the range of uncertainty I'm not sure if I can use H=[h(%)/100]*22 because the word range make me confused