- #1

negatifzeo

- 66

- 0

## Homework Statement

A +8·µC charge is located at coordinates (3,5)·m, and a -2·µC charge is located at coordinates (3,-2)·m. Find the electric field at the origin.

E= ? V/m x + ? V/m y

(It asks for the solution in x and y components)

## Homework Equations

I was using E=kq/r^2, where E is the electric field vector (Away if positive, towards if negative) K was 9x10^9, q is the value of the charge.

## The Attempt at a Solution

First I used pythagorean theorem to determine distance to origin. Then I used this value for r.

Using the formula for the +8 charge I get E=2117.61 and for the -2 charge I got E=1376.63. Then I used the trig functions from the triangles to solve for the components, which I thern added together for the wrong answer. Where have I gone wrong here?