(Solved): A thin spherical shell made of plastic carries a uniformly distributed negative charge 5e10 c ...

A thin spherical shell made of plastic carries a uniformly distributed negative charge $$?5\mathrm{e}?10$$ coulombs (indicated as $$?Q_1$$ in the diagram). Two large thin disks made of glass carry uniformly distributed positive and negative charges $$1.3\mathrm{e}?05$$ coulombs and $$?1.3$$ e-05 coulombs (indicated as $$+Q_2$$ and $$?Q_2$$ in the figure). The radius $$R_1$$ of the plastic spherical shell is 8 $$\mathrm{mm}$$, and the radius $$R_2$$ of the glass disks is 4 meters. The distance $$d$$ from the center of the spherical shell to the positive disk is $$17\mathrm{mm}$$. (a) Find the potential difference $$V_1?V_2$$. Point 1 is at the center of the plastic sphere, and point 2 is just outside the sphere. volts (b) Find the potential difference $$V_2=V_3$$. Point 2 is just below the sphere, and point 3 is right beside the positive glass disk. voits Remember that the sign of the potential difference is important.