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Identify the correct statement(s) from among the following?

  1. a) Resistivity of a material is dependent on the nature of the material.
  2. (b) Resistivity of a material is independent of the area of cross section.
  3. (c) Resistivity of a pure metal is more than its alloy.

    ANone of these

    Bii only

    Ci only

    Di, ii

    Answer:

    D. i, ii

    Read Explanation:

    • Alloys have higher resistivity than pure metals due to the disruption of electron flow by impurities.

    • Statement (c) is incorrect.


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