Recent content by dk321

Homework Statement A small sphere of mass m carries a charge of q. It hangs from a silk thread which makes an angle θ with a large charged non-conducting sheet. Calculate the surface charge density on the sheet. Homework Equations ∫E.ds The Attempt at a Solution I found E of...

Homework Statement A rod of length L and total charge Q is a distance D from a point charge q which lies along the perpendicular bisector of the rod. Find the force of the rod on the point charge Homework Equations E = ∫ dE dq = λdx F = qE The Attempt at a Solution I'm...

why is it j ? the two charges line in horizontal direction so along the perpendicular bisector would be in vertical direction right?

Two equal positive charges are held fixed and separated by distance D. Find the electric field vector along their perpendicular bisector. Then find the position relative to their center where the field is a maximum. so i started with symmetry and principle of superposition and got to...