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A piece of copper and other of germanium are cooled from the room temperature to 80 K, then |
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a) |
Resistance of each will increase |
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b) |
Resistance of each will decrease |
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c) |
The resistance of copper will increase, while that of germanium will decrease |
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d) |
The resistance of copper will decrease, while that of germanium will increase |
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A piece of copper and other of germanium are cooled from the room temperature to 80 K, then |
|
|
a) |
Resistance of each will increase |
|
b) |
Resistance of each will decrease |
|
c) |
The resistance of copper will increase, while that of germanium will decrease |
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d) |
The resistance of copper will decrease, while that of germanium will increase |
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(d) The temperature coefficient of resistance of copper is positive and germanium is negative. |