The magnitude of the average electric field normally present in the atmosphere just above…
Physics · JEE Main · NTA Exams — Electrostatics
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 ε0 = 8.85 × 10–12 C2/Nm2, RE = 6.37 × 106 m]
[Given ε0 = 8.85 × 10–12 C2/Nm2, RE = 6.37 × 106 m]
- +670 kC
- – 670 kC
- – 680 kC
- + 680 kC
Answer
(C) – 680 kC
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