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Question 2 a) A storm cloud has -25 nC built up in a 1.0 km diameter spherica...
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Question 2 a)
A storm cloud has -25 nC built up in a 1.0 km diameter spherical charge centre located 10 km above the ground. This charge centre attracts a similar amount of positive charge that is spread on the ground below the ground.The charge centre and ground act as a charged capacitor, with a potential difference of V. In a lightning strike, the large electric field between these two charged regions (acting as electrodes) may ionise the air resulting in a conducting path between the cloud and ground, through which the 'capacitor' discharges.Image failed to load: A storm cloud with a spherical (negative) charge centre of 1km diameter sits 10 km above the ground which has positive signs.
What is the approximate magnitude of the electric field between the charge centre and the ground?0%
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