# Strength of Electric Field with a point charge

Problem:
A +11 nC charge is located at the origin.

Question:
What is the strength of the electric field at the position x,y (-5cm, 5cm) ?

I would think you would do this but when I try it I get the wrong answer

for x axis - E=k|q|/r2
For y axis - E=k|q|/r2

Then $\sqrt{}Ex^2 + Ey^2$

Last edited:

## Answers and Replies

Redbelly98
Staff Emeritus
Homework Helper
Problem:
A 11 charge is located at the origin.
What is "a 11 charge"?
Question:
What is the strength of the electric field at the position ?
At what position?

I would think you would do this but when I try it I get the wrong answer

for x axis - E=k|q|/r2
For y axis - E=k|q|/r2

Then $\sqrt{}Ex^2 + Ey^2$