The electrical resistivity of pure copper metal at 0°C is 1.6×10-8 ??m. An alloy of 1.12 atom % nickel, which is substitutional in copper, produced with this copper has an electrical resistivity at 0°C of 3×10-8 ??m. What is the electrical resistivity of an alloy produced from this copper with 3.32 atom % nickel at 0°C?
What will be an ideal response?
The resistivity of a substitutional solid solution is directly proportional to the
concentration of substitutional atoms. Using the equation that ?0 = AcNi where ?0 is the resistivity contribution due to zero dimensional defects, A is a constant to be determined and Ni c is the concentration of substitutional Ni atoms.
You might also like to view...
Spectral lines are often referred to as the stars' "fingerprints" because:
A) fingerprints also consist of individual lines that make a pattern. B) both are unique to their source. C) both can be easily categorized. D) both are characteristic of the individual that produced them. E) All of these are correct.
Particle A (mass = m, charge = Q) and B (mass = m, charge = 5 Q) are released from rest with the distance between them equal to 1.0 m. If Q = 12 ?C, what is the kinetic energy of particle B at the instant when the particles are 3.0 m apart?
a. 8.6 J b. 3.8 J c. 6.0 J d. 2.2 J e. 4.3 J
Which of the patterns shown below would appear on a screen when monochromatic light first passes through a narrow slit for which a = ? and then strikes the screen? Note that the darkest area in each illustration represents the brightest area on the screen
a.
b.
The modern theory of dark energy arises from observations showing that
A) galaxies spin at slower than expected rates. B) superclusters are collapsing. C) the speed of light is not exactly constant. D) galaxies are accelerating away from each other.