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How does increasing the cross-sectional area of a wire affect its electrical resistance?

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Conductors and insulators in flexible electronics — electronics The development of screen-printable electronic ink for flexible electronics.

Increasing the cross-sectional area of a wire results in a smaller electrical resistance.

This relationship is defined by the formula for resistance, $R = ρ \frac{l}{A}$ , where $R$ is the resistance, $ρ$ is the resistivity of the material, $l$ is the length of the wire, and $A$ is the cross-sectional area. Because the area $A$ appears in the denominator of this equation, increasing the cross-sectional area while keeping the length and material constant reduces the overall resistance to the flow of electric charge.12