If the length of a wire is doubled then the resistivity of the wire will become

  1. 2 times
  2. 4 times
  3. half
  4. no effect

If the length of a wire is doubled then the resistivity of the wire will become

If the length of a wire is doubled then the resistivity of the wire will remain the same.

  1. Because resistivity is the characteristic of the material.
  2. It does not depend upon the length and cross-sectional area of the wire.
  3. If you change material then it will change otherwise it will be the same.
  4. Note: don’t confuse because the formula of resistivity depends upon the length and cross-sectional area of the wire but resistivity does not depend upon it.

This question is about MSc Electricity and Magnetism MCQs, EMT MCQs. This is the previous year’s question about the competitive exams.


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4.Atomic Physics
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