At what point is the charge per unit area greatest on the surface of an irregularly shaped conducting solid.   A where the surface curves inward b where the radius is bigger c where the surface is flat d where the radius is smaller

In the figure two tiny conducting balls of identical mass m and identical charge q hang from nonconducting threads of length L. Assume that is so small that tan 0 can be replaced by its approximate equal, sin 8. If L = 140 cm, m = 10 g, and x = 6.0 cm, what is the magnitude of q? L ᏀᎾ Ꮎ Number i L 9 0.0000009165 Units nC

(10% ) Problem 7: An infinite conducting cylindrical shell of outer radius ri-0.10 m and inner radius r2 0.08 m initially carries a surface charge density 0.15 μC/m2 A thin wire with linear charge density 1.3 μC m s nserted along the shells' axis. The shell and the wire do not touch and these is no charge exchanged between them Banchi, Stephen - banchis3@students.rowan.edu @ theexpertta.com - tracking id: 2N74-2F-82-4A-BAAB-13083. In accordance with Expert TA's Terms of Service. copying this information to any solutions sharing website is strictly forbidden. Doing so may result in termination of your Expert TA Account. -a33% Part (a) What is the new surface charge density, in microcoulombs per square meter, on the inner surface of the cylindrical shell? -là 33% Part (b) What is the new surface charge density, in microcoulombs per square meter, on the outer surface of the cylindrical shell? 33% Part (c) Enter an expression for the magnitude of the electric field outside the cylinder (r…

Two parallel, thin, L×L�×� conducting plates are separated by a distance d�, as shown. Let L=�=2.5 m, and d=�=2.0 mm. A charge of ++6.5μC�C is placed on one plate, and a charge of −−6.5μC�C is placed on the other plate. a) What is the magnitude of charge density on the inside surfae of each plate in Coulombs per squae meter? b) What is the magnitude of the electric field between the plates?  I was able to find the charge density easily. I am not certain about the electric field.