Maurice Tutor

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Category > Management Posted 21 Mar 2018 My Price 7.00

copper–nickel alloy

A 90 wt% Cu–10 wt% Ni alloy is known to have an electrical resistivity of 1.90 × 10−7 Ω -m at room temperature (25?C). Calculate the composition of a copper–nickel alloy that gives a room-temperature resistivity of 2.5 × 10−7 Ω -m. The room-temperature resistivity of pure copper may be determined from the data in Table

Room-Temperature Electrical Conductivities for Nine Common Metals and Alloys

 

Electrical Conductivity

Metal

[(Ω-m)−1]

Silver

6.8 × 107

Copper

6.0 ×107

Gold

4.3 ×107

Aluminum

3.8 ×107

Brass (70 Cu–30 Zn)

1.6 ×107

Iron

1.0 ×107

Platinum

0.94 ×107

Plain carbon steel

0.6 ×107

Stainless steel

0.2 ×107

Assume that copper and nickel form a solid solution.

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Maurice Tutor
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Status NEW Posted 21 Mar 2018 07:03 AM My Price 7.00

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