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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
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
A piece of copper and another of germanium are cooled from room temper...
We know, a piece of copper is a metal while that of germanium is a semiconducting material. For metals resistance increases with increase in temperature. The semiconductor has a negative temperature coefficient of resistance. Hence, when it is cooled its resistance increases
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A piece of copper and another of germanium are cooled from room temperature to 80° K. The resistance ofa)each of them increasesb)each of them decreasesc)copper increases and germanium decreasesd)copper decreases and germanium increasesCorrect answer is option 'D'. Can you explain this answer?
Question Description
A piece of copper and another of germanium are cooled from room temperature to 80° K. The resistance ofa)each of them increasesb)each of them decreasesc)copper increases and germanium decreasesd)copper decreases and germanium increasesCorrect answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A piece of copper and another of germanium are cooled from room temperature to 80° K. The resistance ofa)each of them increasesb)each of them decreasesc)copper increases and germanium decreasesd)copper decreases and germanium increasesCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A piece of copper and another of germanium are cooled from room temperature to 80° K. The resistance ofa)each of them increasesb)each of them decreasesc)copper increases and germanium decreasesd)copper decreases and germanium increasesCorrect answer is option 'D'. Can you explain this answer?.
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