A. Copper-constantan
B. Aluminium-tin
C. Silver-German silver
D. Iron-steel
Correct Answer: Copper-constantan ✔
Last Updated: December 22, 2018
A. Copper-constantan
B. Aluminium-tin
C. Silver-German silver
D. Iron-steel
Correct Answer: Copper-constantan ✔
Last Updated: December 22, 2018