A piece of copper and another of germanium are cooled from room temperature to 80 K. The resistance of
A. each of them increases
B. each of them decreases
C. copper increases and germanium decreases
D. copper decreases and germanium increases
Answer:D
A piece of copper and another of germanium are cooled from room temperature to 80 K. The resistance of
A. each of them increases B. each of them decreases C. copper increases and germanium decreases D. copper decreases and germanium increases