Question:
3 8P 4 16P 16 A steel scale calibrated at 25 C has been
Last updated: 6/10/2023
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3 8P 4 16P 16 A steel scale calibrated at 25 C has been employed to measure the length of copper pipe at 25 C However the readin has been taken at 45 C If therma coefficient of linear expansion of steel an copper are 3 x 10 5 per C 1 and 2 10 per C respectively then percentage erro in reading taken is 1 0 01 3 0 01 2 0 02 0 05