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Quiz 4 - Earth Ionosphere Capacitor
As shown in Figure 1, the Earth and the ionosphere (which is a conducting layer at approximately 60km altitude)
form a two conductor spherical capacitor. In a fair weather, an electric field of 10 V/m is found at each point
on the surface (r = Re) of the Earth. The field is radial and points toward the center of the Earth. To simplify
your calculations, assume Re = 6000 km, εo= 1/36π × 10-9 F/m.
Physics key words: planetary science, ionosphere, capacitance, conductive, electric
field, EM, magnetism, Earth, fields, charge, discharge, balanced, Gauss Law,
absorption rate, quiz, solution, answers.
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