a steel wire of 2mm in diameter is stretched by applying a force of 72N. stress in wire is
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Stress = Force/Area
Stress = F/πr²
Stress = 72/3.14×4×(10^-6)
Stress = 5.732×(10^6)
Stress = F/πr²
Stress = 72/3.14×4×(10^-6)
Stress = 5.732×(10^6)
navaratna:
it's wrong
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