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the electric field near the earth's surface is 300V/meter directed downwards. what is the surface density of charge on earth's surface |
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Answer» eo = 8.85 * 10 -12 E = 300 V/m ψ = E * Area = q / eo σ = E*eo = q/Area = E * eo = 2.655*10-9 C/m2 |
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