Which of the following are bad conductors of heat?
A
wood
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B
rubber
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C
water
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D
copper wire
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Solution
The correct options are A wood B rubber C water Materials which conduct electricity or heat nicely are known as good conductors. Others are known as bad conductors. A good conductor usually has charged particles like electrons or ions in them. Copper being a metal has free electrons available for conduction Wood rubber and water are non-metals and do not have free electrons for conduction. Hence they are bad conductors.