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What is the electrical conductivity of Aluminum?

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in Engineering Material & Metallurgy by (773k points)
What is the electrical conductivity of Aluminum?

(a) 6.3 * 10^7

(b) 5.9 * 10^7

(c) 3.5 * 10^7

(d) 1 * 10^7

The question was asked in exam.

This key question is from Electrical Properties topic in division Properties of Engineering Materials of Engineering Material & Metallurgy

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The correct answer is (c) 3.5 * 10^7

For explanation I would say: The electrical conductivity of Aluminum is 3.5 * 10^7. The electrical conductivity of Silver, Copper, and Iron is 6.3 * 10^7, 5.9 * 10^7, and 1 * 10^7 in that order. The electrical conductivity is generally measured at 20^oC.

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