Athin, metallic spherical shell of radius 0.187 m has a total charge of 6.53×10−6 c placed on it. a point charge of 5.15×10−6 c is placed at the center of the shell. what is the electric field magnitude a distance 0.965 m from the center of the spherical shell? = n/c does the electric field point outward from the center of the sphere or inward?

a) 112.88 * 10^3 N/C; b) The electric field point outward from the center of the sphere.

Explanation: In order to solve this problem we have to use the gaussian law so we use a gaussian surface at r=0.965 m and the electric flux is equal to Q inside/εo

E* 4*π*r^2= Q inside/εo

E= k*Q inside/r^2= 9*10^9*(6.53+5.15)μC/(0.965)^2=122.88 * 10 ^3 N/C

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