Which of the following does not belong to the group formed by the others?

Iron coin

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Wooden ruler

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Silver cup

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Copper wire

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Solution

The correct option is C Wooden ruler
Except wood all are good conductors whereas wood is an insulator.
Good conductors are those materials that allow electricity to pass through them easily. Bad conductors are those materials that do not allow electricity to pass through them easily.

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Which of the following does not belong to the group

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