What happens to resistance as the diameter of a conductor increases?

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Study for the Abeka Science Matter and Energy Test 7. Enhance your knowledge with flashcards and multiple-choice questions, each with explanations. Get ready for academic success!

Multiple Choice

What happens to resistance as the diameter of a conductor increases?

Explanation:
Resistance depends on how much cross-sectional area the conductor has. For a given material and length, resistance is R = ρL/A, so as the diameter—and thus the cross-sectional area A—increases, the resistance decreases. A concrete example: doubling the diameter makes the area four times larger, so the resistance becomes one quarter. Therefore, increasing diameter leads to a decrease in resistance.

Resistance depends on how much cross-sectional area the conductor has. For a given material and length, resistance is R = ρL/A, so as the diameter—and thus the cross-sectional area A—increases, the resistance decreases. A concrete example: doubling the diameter makes the area four times larger, so the resistance becomes one quarter. Therefore, increasing diameter leads to a decrease in resistance.

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