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Electronics and Communication Engineering - Exam Questions Papers - Discussion

Discussion Forum : Exam Questions Papers - Exam Paper 17 (Q.No. 2)
Exam Questions Papers
2.
Which of the following statements is/are true for a good conductor of electricity?
  1. Its conductivity decreases with increasing temperature.
  2. Number of free electrons is around 1028 m-3.
  3. Its conductivity decreases with addition of impurities.
  4. It is a good conductor of heat also.
1, 2, 3 and 4
1 only
2 and 3 only
3 and 4 only
Answer: Option
Explanation:
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