A lightning rod US AUS CA or lightning conductor is a metal rod mounted on a structure and intended to protect the structure from a lightning strike. Most metals including aluminum are good conductors of electricity as well as water.
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Most items made of plastic and rubber are insulators.
. If lightning hits the structure it will preferentially strike the rod and be conducted to ground through a wire instead of passing through the structure where it could start a fire or cause electrocution. Materials that do not allow electric current to flow well are insulators. It is important to understand the difference between a conductor and insulator not simply to create circuits but also in the construction of our homes and cooking.
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