what is the resistance of a 3.5m copper wire that has a cross-sectional area of 5.26 x 10-6 m2?

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simplegr66

High School

what is the resistance of a 3.5m copper wire that has a cross-sectional area of 5.26 x 10-6 m2?

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skopie

Verified answer

R=ρ $\frac{L}{A}$
Where, R is resistance
ρ is resistivity,
L is length and
A is cross sectional area
Given, L= 3.5m
A=5.26 x 10⁻⁶ m²
ρ=1.68×10⁻⁸ ohms m
∴ R= $\frac{(1.68)(3.5)}{5.26*100}$
⇒ R=1.11×10⁻² ohms
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Toxin057

Answer: 1.1 x 10^-2
Explanation: A P E X
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