Question

An infinite line charge of uniform linear charge density = -1.4 C/m lies parallel to the y axis at x = 0 m. A point charge of 2.3 C is located at x = 2.0 m, y = 3.0 m. Find the x- and y-components of the electric field at x = 3.0 m, y = 2.5 m.

Answer 1

Use E=L/(4pi.epsilon.r)
where, l=linear charge density of line charge
r= perpendicular distance of pt from line charge where field is to be calculated.