Question

the specific resistance of a conductor increase with ??​

Answer 1

Answer:

  (a) increase in temperature  Explanation: Resistance of a conductor is given by R = ρ l/A, where ρ is the specific resistance, l is the length and A is the cross-sectional area of the conductor.  Now, when l = 1 and A = 1, R = ρ. So specific resistance or resistivity of a material may be defined as the resistance of a specimen of the material having unit length and unit cross-section. Hence, specific resistance is a property of a material and it will increase with the increase of temperature, but will not vary with the dimensions (length, cross section) of the conductor.

Explanation:

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