Which of the following statements is/are true for a good conductor of – McqOptions

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1.	Which of the following statements is/are true for a good conductor of electricity? Its conductivity decreases with increasing temperature.Number of free electrons is around 1028 m-3.Its conductivity decreases with addition of impurities.It is a good conductor of heat also.
A.	1, 2, 3 and 4
B.	1 only
C.	2 and 3 only
D.	3 and 4 only
Answer» B. 1 only

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