The resistance of the copper wire is 0.1039 Ω.
In calculating the resistance of a wire, the formula below can be used.
Resistance = (Resistivity*Length of wire)/(Cross-section Area)
The resistivity of copper wire is 1.72 x 10-8 Ωm. The length of the wire is 20.0 m and the area of the wire is 3.3103x10-6 square meters. The area of the wire is calculated by using the formula below.
Cross-section area= (π/4)(diameter)^2
Cross-section area=(π/4)(2.053 mm or 2.053x10-3 m)^2
Cross-section area= 3.3103x10-6 square meters
Calculating for the resistance of the wire:
Resistance= (1.72x10-8 Ωm * 20.0 m)/( 3.3103x10-6 m2)
Resistance=0.1039 Ω
For more information regarding resistance, please refer to the link brainly.com/question/17055655.
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