A student writes the length of any object measure a metre ruler as 4•20cm justified in wtiton by rule the value ? Explai
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the least count of ammeter scale is generally 1 mm which is 0.1 CM so you cannot measured any length with an accuracy of. 01 a metre scale .
Hi Mast right 4.2 CM although 4.2 and 4.20 are same
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