Passage III
Tables 1 and 2 summarize information about the resistance of some 1-meter (m)-long aluminum and copper wires, respectively, that have different diameters. The resistance of a wire (reported in ohms) restricts the flow of electrons through the wire and results in the.conversion of electrical energy to heat. Table 3 reports the resistance, in ohms, of different lengths of 0.10-mm-diameter aluminum wire at 20°C.
15. Could an experimenter calculate the density (mass/volume) of aluminum from a single table provided in the passage?
Your Answer is
Correct Answer is B
Explanation
The calculation formula of density is given in the title ρ=m/V, but the mass is not given in the three tables, so the density cannot be calculated