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Do thick wires have high or low resistance?

Updated: 8/20/2019
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12y ago

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Low resistance.

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Since resistance is inversely proportional to the cross-sectional area of a conductor, increasing the diameter ('thickness') of a conductor will reduce its resistance.

For example, doubling the diameter of a circular-section conductor will quadruple its cross-sectional area, and reduce its resistance by one quarter.

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Q: Do thick wires have high or low resistance?
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