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.
17. Which of the following graphs best represents the relationship between diameter and resistance for wires made of aluminum?
Your Answer is
Correct Answer is A
Explanation
It can be seen from table 1 that the larger the diameter, the smaller the resistance, so you should choose A