Q.

Which of the following is a good conductor of electricity?

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a

Copper

b

Glass 

c

Wood

d

Paper

answer is C.

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Detailed Solution

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Copper is a good conductor of electricity.
An electrical current cannot flow through metals unless the power source is able to break through resistance. As a metal's resistance falls, its electrical conductivity rises. Due to its low resistance, copper wire makes a good electrical conductor as well.
 
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