The length of a wire is 4m its length is increased by 2mm when a force acts on it the strain is
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Original length=4m
Increase in length=2mm=2×10^(-3)m
Strain =Change in length/Original length
=(2×10^(-3))/4=0.5×10^(-3)
Strain=5×10^(-4)
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Answer:
first covert the Meyer in to mm so 4m=4×10^3
strain =change in length/ original length
2mm/4×10^3
1/2×10^3
0.5×10^-3
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