Question

2. (5 points) Solar radiation strikes Earth's atmosphere each day. These collisions knock electrons off of atoms and create very many ions. Rain carries the electrons to the ground so that, to a good approximation, Earth's surface can be thought of as a uniform shell of negative charge-Q and the atmosphere can be thought of as a concentric shell of positive charge +Q. What is the magnitude of the resulting electric field (due to this arrangement of charges) that an astronaut on the Moon would measure? What is the magnitude of the resulting electric field that would be measured at some point deep inside the Earth? Be sure to draw the Gaussian shape that you use to determine this and explain how you achieved your answers.

Answer 1

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a Ro outerspace. P ху ооо. . to. 7 aussian Surface, for 87R (outer Space, moon) using Gauss's law Se thenclosed E-477? = (+6–) = E =o) And b) for 8<R (inside earth) Again using Gann's law E.4702= 16 let Aul T HQ. P = Eco