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1. |
A piece of copper and another of germanium are cooled from room temperature to 77 K. what will impact on the resistance of each of them? |
A. | Each of these decreases |
B. | Copper strip increases and that of germanium decreases |
C. | Copper strip decreases and that of germanium increases |
D. | Each of these increases |
Answer» D. Each of these increases | |