The photograph shows a statue of Buddha in Sri Lanka, which is protected by a lightning conductor.
During a storm, a potential difference of 2.7 MV was generated between a cloud and the top of the lightning conductor on the statue. A flash of lightning passed between the cloud and the lightning conductor, producing a current of 25 kA for a time of 7.5 ms.
Calculate the energy transferred by the lightning strike.
Energy transferred = ............................................
The lightning conductor is made from copper.
Sketch an I–V graph for the rod when it conducts a lightning strike to earth
Explain any changes which the lightning rod would undergo during a lightning strike.
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