Question
Which of the following statements about the resistivity of metals is INCORRECT?
The correct answer is
Resistivity is inversely proportional to the cross-sectional area of the metal.
Resistivity is a material property and does not depend on the cross-sectional area or length. It only depends on the material's intrinsic properties.
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Important Questions from Metals and Properties
In general, resistivity of an alloy ______ its constituent metals.
In Stress & Strain diagram, stress is always represented on the ______.
What is the primary material used in the resistance wire of wire-wound resistors?
Aluminium in its pure form is not used for engineering work because
The ability of a metal to withstand shock and impact
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