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A steel rod has a length of exactly 0.2 cm at 30 C What will be its length at 60 C?
Wiki User
∙ 11y ago
The initial length is 0.2 cm
Initial temperature is 30 degrees C and final temperature is 60 degrees C. he difference in temperature is 30 degrees.
Let "e" be the linear coefficient of expansion of the steel rod in cm per degree C (you can find this from the specifications for the particular steel), then the expansion is
0.2 x e x 30 cm
To find the total new length we have to add the original length which is 0.2 cm
Hence new length is 0.2 + (0.2 x e x 30) cm
And that is (0.2) x (1 + e x 30) cm
Wiki User
∙ 11y ago
Anonymous
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