Question

In a particular region of Earths atmosphere, the electric field above Earths surface has been measured to bo 143 N/C downward at an altitude of 280 m and 16 NC downward at an altitude of 430 m. Calculate the volume charge density of the atmosphere, assuming it to be uniform between 280 and 430 m. (Hint: You may neglect the curvature of Earth. Why?) C/m3

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Answer #1

Using the concept of gauss law we can determine the charge density

Gauss law states that the total flux is equal to the charge enclosed over epsilon.

The charge enclosed is the density * volume

total flux = density * volume /epsilon

(ïven this prouem cn be uolved winq qaus Lau Hele 12. 12- 15Om p = -Q4xg.ggXIO 150 Toptq ce e -1.416 .xio c/m3 electyc fteld Ju peihtng into the Bottom Total flux 16 ) 24 A

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