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).

13. Based on Figure 1, the resistivities of the metals listed in Table 1 were most likely measured at a temperature closest to which of the following?

Answer and Explanation

Your Answer is

Correct Answer is B

Explanation

General knowledge questions.

In the absence of special instructions, ordinary experimental tests are carried out at room temperature. Generally, room temperature is defined at 25°C, and there is a formula K=274.15+T (K is Kelvin, T is Celsius), so 25°C is equivalent to about 300 K