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Q.

Who invented the first lightning conductor?


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a

Thales

b

Franklin

c

Einstein

d

Thomson 

answer is B.

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Detailed Solution

This is because a lightning conductor is a pointed metal rod which is placed at the top of the building. Therefore it is used to protect the buildings to get damaged. Hence, pointed metal rod is connected with a wire which produces low resistance path to lightning and allow it to pass to the ground without causing any damage to the building. So,Benjamin Franklin was the first who invented lightning conductor.
  
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