A positive point charge Q=1.6 x 10-19 C is located at the origin of a spherical cloud of negative charges. The charge density of the cloud is defined as Q -2r/a e π a where a 5.292 x 10-11 m. Find the field intensity Eat r = 7 x 10-¹¹ m. E= V/m (Round your results to 4 significant figures) Pv=-
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