The square ABCD made of 4 metal rods AB BC CD and DA with

Last updated: 6/24/2023

The square ABCD made of 4 metal rods AB BC CD and DA with point A and C remain fixed AB and AD have coefficient of linear expansion a and are heated temperature t C BC and CD have coefficient of linear expansion a and are b by 1 C 12 ti So that B and D move on perpendicular bisector of AC The temperature difference is proportional to