7. A hollow conducting spherical shell has radii of 0.80 m and 1.20 m, as shown in thefigure. The sphere carries a net excess charge of -500 nC. A point charge of +300 nC ispresent at the center.What is the surface charge density on the inner surface of the conducting shell?What is the magnitude of the electric field at a distance of 1.7 m away from thecenter of the spherical shell?a.b.+300 DC0.80 m-1.2 m

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7. A hollow conducting spherical shell has radii of 0.80 m and 1.20 m, as shown in the figure. The sphere carries a net excess charge of -500 nC. A point charge of +300 nC is present at the center. a. What is the surface charge density on the inner surface of the conducting shell? b. What is the magnitude of the electric field at a distance of 1.7 m away from the center of the spherical shell?

7. A hollow conducting spherical shell has radii of 0.80 m and 1.20 m, as shown in the figure. The sphere carries a net excess charge of -500 nC. A point charge of +300 nC is present at the center. a. What is the surface charge density on the inner surface of the conducting shell? b. What is the magnitude of the electric field at a distance of 1.7 m away from the center of the spherical shell?