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Question
Which of the following material cannot be used as a lightning rod?
Which of the following material cannot be used as a lightning rod?
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Solution
The correct option is D Wood
The lightning rod is made of an excellent conductor which allows the flow of charge to the ground without causing any damage to the building. Wood is a poor conductor of electricity and it does not allow the flow of charges through it. Hence, we cannot use wood as a lightning rod. On the other hand iron, copper and aluminium are metals which are good electrical conductors and suitable for using as lightning conductors.
The lightning rod is made of an excellent conductor which allows the flow of charge to the ground without causing any damage to the building. Wood is a poor conductor of electricity and it does not allow the flow of charges through it. Hence, we cannot use wood as a lightning rod. On the other hand iron, copper and aluminium are metals which are good electrical conductors and suitable for using as lightning conductors.
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