Answer
Steel wire has greater Young's modulus. It is a measure of the ratio of stress over strain. For a given stress, a material with greater Young's modulus will have smaller strain. Steel will have smaller strain here.
Work Step by Step
Steel wire has greater Young's modulus. It is a measure of the ratio of stress over strain. For a given stress, a material with greater Young's modulus will have smaller strain. Steel will have smaller strain here.