Question
Asked Dec 19, 2019
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Gold is the most ductile of all metals. For example, one gram
of gold can be drawn into a wire 2.40 km long. The density of
gold is 19.3 x 103 kg/m3, and its resistivity is 2.44 x 10-8 Ω ⋅ m.
What is the resistance of such a wire at 20.0°C?

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Expert Answer

Step 1

The density of the gold,

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Step 2

Volume,

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1 kg 1g 19.3 x10 kg/m³ 10° g = 0.051813 x10 m3

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Step 3

Area of the ...

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A = 0.051813x10° m³ 2.40x10° m = 2.15 x 10-" m?

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Electric Charges and Fields

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