Question

Calculate the change in length on a copper (Coefficient of linear expansion for copper is 17 * 10-6 / oC) rod that is 25 meters that undergoes a temperature change of 15 o.

Answer 1

Answer:

0.6375 cm

Explanation:

coefficient of linear expansion of copper, α = $17\times10^{-6}Per degree c$

Lo = 25 m

Δ T = 25 degree C

According to the formula of thermal expansion which is linear in nature is given by

$\Delta L = L_{0}\times\alpha \times\Delta T$

Where, ΔL be the change in length

$\Delta L = 25\times17\times10^{-6}\times15=6.375\times10^{-3}m$=0.6375 cm