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Q.

Which of the following current is not conducted?

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a

Copper

b

Wood

c

Aluminium

d

Mercury

answer is B.

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Detailed Solution

The current cannot be conducted in the wood.
Electricity cannot be conducted through the wood. Wood is made up of lignin, hemicellulose, cellulose, and extractive, but it lacks the free electrons needed to conduct an electric current. Metals are good conductors of electricity because the free electrons in their structure move freely. These electrons also serve to hold the metal's atoms together. Glass, plastic, and wood are not conductors of electricity. They act as insulators.

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