The electric field of the earth is on average $150\frac{\mathrm{????}}{\mathrm{????}}$ downward at $10\mathrm{.}0\mathrm{????}$ above the surface. If the earth is modelled as a uniform infinite planar charged object, what is its surface charge density, $\mathrm{????}?$

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To find the surface charge density of the earth we first need ... View the full answer