Concepts Of Physics MCQ Edition [Volume 2]PhysicsElectric Current in Conductors

If the temperature of a metallic resistor is raised, the product of its resistivity and conductivity

Options

Aremains constant
Bmay increase or decrease
Cdecreases
Dincreases

Correct answer

A. remains constant

Step-by-step solution

Resistivity and conductivity are reciprocals of each other. = 1 The product of resistivity and conductivity is = ( 1 ) = 1 . Since the product is always equal to 1 , it is independent of temperature. Thus, when the temperature of a metallic resistor is raised, the product of its resistivity and conductivity remains constant.

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