when both are at 20^∘C

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A steel scale measures the length of a copper wire as 80.0 cm, when both are at 20^∘C, the calibration temperature for the scale. What would the scale read for the length of the rod when both are at 40^∘C ? Given: α for steel =11×10^−6 per ∘C and a for Cu=17×10^−6per∘C
06
Sep
A steel scale measures the length of a copper wire as 80.0 cm, when both are at 20^∘C, the calibration temperature for the scale. What would the scale read for the length of the rod when both are at 40^∘C ? Given: α for steel =11×10^−6 per ∘C and a for Cu=17×10^−6per∘C A steel scale [...]
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Tags: A steel scale measures the length of a copper wire as 80.0 cm , the calibration temperature for the scale. What would the scale read for the length of the rod when both are at 40^∘C ? Given: α for steel =11×10^−6 per ∘C and a for Cu=17×10^−6per∘C , when both are at 20^∘C ,