Question:
A steel rod is rigidly clamped at two ends. The rod is under zero tension at $20^{\circ} \mathrm{C}$. If the temperature rises to $100^{\circ} \mathrm{C}$, what force will the rod exert on one of the clamps. Area of cross-section of the rod=2.00 $\mathrm{mm}^{2}$.
Solution:
