Question is ⇒ Which of the following statements is/are true for a good conductor of electricity? <ol style="list-style-type: decimal; padding-bottom:10px;"><li style="padding-top:10px;">Its conductivity decreases with increasing temperature.</li><li style="padding-top:10px;">Number of free electrons is around 1028 m-3.</li><li style="padding-top:10px;">Its conductivity decreases with addition of impurities.</li><li style="padding-top:10px;">It is a good conductor of heat also.</li></ol>, Options are ⇒ (A) 1, 2, 3 and 4, (B) 1 only, (C) 2 and 3 only, (D) 3 and 4 only, (E) , Leave your comments or Download question paper.

Question is ⇒ Which of the following statements is/are true for a good conductor of electricity? <ol style="list-style-type: decimal; padding-bottom:10px;"><li style="padding-top:10px;">Its conductivity decreases with increasing temperature.</li><li style="padding-top:10px;">Number of free electrons is around 1028 m-3.</li><li style="padding-top:10px;">Its conductivity decreases with addition of impurities.</li><li style="padding-top:10px;">It is a good conductor of heat also.</li></ol>, Options are ⇒ (A) 1, 2, 3 and 4, (B) 1 only, (C) 2 and 3 only, (D) 3 and 4 only, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	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 [Correct Answer]
B.	1 only [Wrong Answer]
C.	2 and 3 only [Wrong Answer]
D.	3 and 4 only [Wrong Answer]
View Answer 2 -1 Explanation:- Answer : A Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

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