Answers

2015-02-12T20:48:46+05:30
no diamond is a bad conductor of electricity because the carrier of electricity is electron or electron hole,and diamond has none of them. 
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2015-02-12T20:58:36+05:30
Diamond  is  a  good  conductor  of  heat  but a  bad  conductor  of  electricity.In  diamond  all  the  valence  electrons  are involved  in  the  covalent  bonds.As  there  are  no  free  moving  electrons  diamonds  are  a  poor  conductor  of  electricity.
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