Materials and Components
The residual resistivity of a binary alloy at 0 K is

Dependent on the concentration of minor component in the alloy
Product of residual resistivities of component metals
Difference of residual resistivities of component metals
Sum of residual resistivities of component metals

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Materials and Components
An atom of a rare gas is placed is an electric field E. Then

The nucleus will be shifted in a direction opposite to that of E.
The nucleus will be shifted in the direction of E by an amount which is proportional to E.
The nucleus will not be shifted.
The nucleus will be shifted in the direction of E by an amount which is independent of E.

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