The resistance in a wire decreases as its
A)diameter increases.
B)diameter decreases.
C)temperature increases.
D)surface area decreases.

Name: The resistance in a wire decreases as its A)diameter increases. B)diameter decreases. C)temperature increases. D)surface area decreases.
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Question

Quizplus · Accepted Answer

The resistance of a wire is directly proportional to its length and resistivity, and inversely proportional to its cross-sectional area. Therefore, as diameter (or cross-sectional area) increases, the resistance decreases.

The Resistance in a Wire Decreases as Its