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If a wire is stretched and its length increases by 2%, what is the strain?

Practice Questions

Q1
If a wire is stretched and its length increases by 2%, what is the strain?
  1. 0.02
  2. 0.2
  3. 2
  4. 200

Questions & Step-by-Step Solutions

If a wire is stretched and its length increases by 2%, what is the strain?
  • Step 1: Understand that strain is a measure of how much a material deforms compared to its original size.
  • Step 2: Know that strain is calculated using the formula: Strain = (Change in Length) / (Original Length).
  • Step 3: In this question, the wire's length increases by 2%.
  • Step 4: Convert the percentage increase into a decimal for calculation: 2% = 2/100 = 0.02.
  • Step 5: Since the change in length is 0.02 times the original length, we can say that the strain is 0.02.
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