Question

What is linear expansion? A copper wire of 5m. at 15 degree is heated to 35 degreec. calculate the increase in the length of the wire, if coefficient of linear expansion of cu is 1.7 x 10-5 0c-1.​

Answer 1

Explanation:

increase in length =5×1.7×10^-5×20

=17×10^-4 meter

Answer 2

Answer:

1.7mm= 1.7x10^-3m

Explanation is in the image.