In a rectangular coordinate system a positive point charge q

In a rectangular coordinate system, a positive point charge q = 9.00 nC is placed at the point x = 0.240 m, y = 0, and an identical point charge is placed at x = -0.240 m, y = 0. Find the x and y components and the magnitude and direction of the electric field at the following points. Find the x and y components of the electric field at x = 0.480 m, y = 0. Find the magnitude of the electric field at x = 0.480 m, y = 0. Find the direction of the electric field at x = 0.480 m, y = 0.

Solution

a) Ex at x= 0,480 m = 9 x 10^9 (9 x 10^-9 )/ (0.48 +0.24)^2 + 9 x 10^9 ( 9 x 10^-9) / (0.48 - 0.24)^2

=81 ( 1/0.5184 + 1/0.0576) = 1562.499 N/C

Ey = 0

b) E = 1562.499 N/C

c) Electric field is loacted along x axis

c)