Passage II

Resistivity is the tendency of a material to oppose the flow of an electric current, whereas conductivity is the ability of a material to carry an electric current. Table 1 lists, for each of 12 metals at the same temperature, the density (in grams per cubic centimeter, g/cm3), resistivity (in ohm meters, Ω∙m), and conductivity (in siemens per meter, S/m). Figure 1 shows, for 3 of these metals, how resistivity varies with temperature (in kelvins, K).

11. Suppose that a certain metal has a resistivity of 3.46 × 10-8 Ω·m. Based on Table 1, the conductivity of this metal is most likely closest to which of the following?

Answer and Explanation

Your Answer is

Correct Answer is D

Explanation

A rule can be found from table 1, that is, the greater the resistance, the smaller the conductivity. So if the resistance of a material is 3.46×10-8, then its resistance is between Calcium and Beryllium, so its conductivity should also be between the two, that is, between 2.81×107-2.97×107 , so option D conforms to