ok, i did what i can. i don't know what more you want me to show so you could help me. if you are unwilling or unable to help, just say so. I am just asking for a response. is that asking for too much?
i drew a diagram
i found ro, which is sq rt (z^2 + r^2 - zrcos(theta))
i also have dl = dr r direction + r dtheta theta direction + r sin theta d phi phi direction
da =r62sintheta dthetadphi
dE = sigma/4piE0 da/ro squared
i need someone to help me with the calculus.
thanks in...
ok, here is the question, i need it by tomorrow:
find the electric field of a distance z from the center of a spherical surface of radius r, which carries a uniform charge density sigma. treat the case z<r(inside the sphere) as well as z>r(outside of the sphere)> Express your answer in terms...