1. The problem statement, all variables and given/known data An uncharged nonconductive hollow sphere of radius 19.0 cm surrounds a 20.0 µC charge located at the origin of a cartesian coordinate system. A drill with a radius of 1.00 mm is aligned along the z axis, and a hole is drilled in the sphere. Calculate the electric flux through the hole. 2. Relevant equations Volume charge distribution = Q/V Flux = q/ε0 = EA 3. The attempt at a solution So I started off by finding the Volume which was (4/3)pi(0.19^3) = 0.0287 I then divided the charge by this to get the Volume Charge Density = 6.9686^-4 Here is where I get stuck. I have no idea how to relate the Volume Charge Density to the flux through the small hole. I thought perhaps I should find the Area Charge Density of the small hole but I am really unsure. Im not asking for the answer, I just need a brief description of where to go from here/ what formulas to use. Any help would be greatly appreciated!