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When a thin mild steel wire is subjected to gradually increasing loads in equal steps until it fractures, how does the extension change with the applied loads?

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Subject
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Published
25 Jan 2019
Last updated
28 May 2026

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Explanation

As equal incremental loads are applied to a mild steel wire, its extension increases proportionally and uniformly until failure. This is because the wire behaves elastically within its limit, resulting in a steady increase in elongation with each added load.

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Practice related questions from the same subject.

  1. 1.Up to which point does Hooke's law remain valid?
  2. 2.What is the unit of Young's modulus?
  3. 3.When a body is subjected to equal and opposite forces that attempt to stretch it, the resulting stress is known as______________________?
  4. 4.What is the modulus of rigidity defined as the ratio of?
  5. 5.How does the ultimate tensile strength of mild steel compare to its ultimate compressive strength?
  6. 6.What happens to the Young's modulus of a wire if its radius is increased to twice its original size under the same load?
  7. 7.How is the tensile strength of a material calculated during a tensile test?
  8. 8.What is the amount of elongation in a wire relative to its original length when the applied stress equals the Young's modulus?
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