ICSE Class 9 Answered
with the help of a labelled diagram explain how is the negative zero error of a screw gauge determined also explain how such an error corrected
Asked by scg.naman.21jan.7 | 11 May, 2022, 04:51: PM
Expert Answer
There are two kinds of zero error—positive and negative zero error.
1. Positive zero error: The zero error is said to be positive when the zero mark of the circular scale is lower than the base line of the main scale.
2. Negative zero error: The zero error is said to be negative when the zero mark of the circular scale is higher than the base line of the main scale.
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Answered by Jayesh Sah | 12 May, 2022, 03:03: PM
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