Question

Find the electric field at a point P on the perpendicular bisector of a uniformly charged rod. The length of the rod is L, the charge on it is Qand the distance of P from the centre of the rod is a.

Answer 1

use the concept of integration

let x be distance from centre
find the linear charge density
dq=Q/L * dx
then find the field substitute the values in the main field formula

E=1/4pi etc (dq/x^2)
substiute dq and i know that you know the meaning of etc
this can easily be done by you???