Why is the upper end of lightning conductor pointed?
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Lightning rods are pointed so a charge will be concentrated at the end. If the rod had a round end the charges would spread equally around its surface..... As long as the air is prevented from ionizing it won't conduct the lightning bolt.....The purpose of the rod is to prevent ionization by discharging the ions in the air.
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The top end of the lightning conductor is pointed like sharp spike and its fixed above the highest point of building. If lightning strikes, it will hit the top of lightning conductor and electrical energy passes safely through metal strip and into ground.
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