Home › AP EAPCET (Engineering) › Physics › Mechanical Properties of Solids › A steel and a copper wire of equal size carry eq…
A steel and a copper wire of equal size carry equal loads. Which stretches less?
AThe copper wire
BBoth equally
CThe brass wire
DThe steel wire
Answer & Solution
Correct answer: D. The steel wire
Steel needs a larger force for the same strain than copper, so it has the larger Young's modulus and stretches less.
Related questions
For small strains, the stress-strain curve can be approximated as what?A more porous solid generally shows what compared with a dense one?What did Hooke's Latin phrase "Ut tensio, sic vis" mean?Which scientist first formulated the linear force-extension law in 1675, published in 1678On what scale is the elastic modulus of most common engineering materials?Which dimensions does the elastic modulus carry in terms of L, M and T?What is the SI unit of the elastic modulus?What does the elastic limit (yield strength) of a material represent?