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

0.6375 cm

Step-by-step explanation:

coefficient of linear expansion of copper, α =
`17*10^(-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)*\alpha *\Delta T`

Where, ΔL be the change in length

`\Delta L = 25*17*10^(-6)*15=6.375*10^(-3)m`=0.6375 cm