As a copper wire is heated,its length increases by 0.200%.What is the change of the temperature of the wire? (α_Cu = 16.6 × 10−⁶/C°) A) 120°C B) 60.2°C C) 30.1°C D) 6.0°C

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Quizplus · Accepted Answer

The change in length is given by:ΔL = αLΔTwhere α is the coefficient of linear expansion, L is the original length, and ΔT is the change in temperature.Solving for ΔT, we get:ΔT = ΔL/(αL)Substituting the given values, we get:ΔT = (0.00200)/(16.6 × 10−6 × L)Since the length is not given, we cannot calculate the exact value of ΔT. However, we can say that the change in temperature is proportional to the change in length. Therefore, the correct answer is A) 120°C, which is the largest change in temperature given.

As a Copper Wire Is Heated,its Length Increases by 0