A sharp point concentrates the electric field lines from a charged cloud. This high electric field at the tip promotes corona discharge, which is a continuous leakage of charge from the conductor into the air. This discharge helps to neutralize the surrounding air and reduce the potential difference between the cloud and the ground, thereby reducing the likelihood of a direct lightning strike to the protected structure.
Which one of the following is the best shape of a solid metal rod to form the top end of a lightning conductor ?
Asked in UPSC NDA 1 2024 · Topic: Electric Current (Superconductivity (basic concepts, critical temperature, applications))
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