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Question 7 2 pts A charged particle is placed at the center of an evacuated, metal, spherical shell. The charge on the particle is an initially unknown number of nano-Coulombs. The metal shell (of inner radius a and outer radius b) is also given an unknown amount of charge (in nano-Coulombs). The magnitude of the electric field is measured at several radii r, where r > b. This field is found to be E(r >b) 72/r2 in N/C. It turns out, the charge on the inner surface of the shell at r - a is -5 nano-Coulombs. Enter the charge on the particle at the center of the shell. Answer with a single digit (#) in nC with no decimal point. Next >

This question also refers to the previous question where a charged particle is inside a charged, metal, spherical shell. How much net (or total) charge was initially given to the spherical shell? Answer with a single digit (#) in nC with no decimal point.

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The charge on center and spherical shell

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