JEE Main 2014 Physics question
The magnitude of the average electric field normally present in the atmosphere just above the surface of the Earth is about 150 N/C, directed inward towards the center of the Earth. This gives the total net surface charge carried by the Earth to be : [Given : /N-, m]
Answer: (1)
Solution
By Gauss's law for a uniformly charged sphere, . Here R^2$ =
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