14. Based on the results of Experiment 1,if an engineer needs a wire most resistant to stretching when it is placed under tension and heat, which of the following wires should she choose?
Your Answer is
Correct Answer is J
Explanation
As can be seen from figure 1, as the temperature increases, the smallest linear expansion is nickel nickel. The smaller the Expansion, it means more resistant to stretching, so nickel is the most resistant material