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प्रश्न
A piece of copper and another of germanium are cooled from room temperature to 77K. The resistance of ______.
पर्याय
each of these decreases
copper strip increases and that of germanium decreases
each of these increases
copper strip decreases and that of germanium increases
MCQ
रिकाम्या जागा भरा
उत्तर
A piece of copper and another of germanium are cooled from room temperature to 77K. The resistance of copper strip decreases and that of germanium increases.
Explanation:
When the temperature drops, the resistance of copper (a conductor) falls while the resistance of germanium (a semiconductor) rises.
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Integrated Circuits
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