The current in a cloud-to-ground lightning strike starts at 200 kA and diminishes linearly to zero in
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The current in a cloud-to-ground lightning strike starts at 200 kA and diminishes linearly to zero in 100 μs. Find the energy released W and the capacitance of the cloud to ground C if the voltage before the discharge is
(a) 100 MV;
(b) 500 MV.
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