(adsbygoogle = window.adsbygoogle || []).push({}); [SOLVED] Electric Field due to a Dipole

1. The problem statement, all variables and given/known data

The figure shows two charged particles on an x axis: -q=[itex]-3.20(10^{-19})C[/itex] and q=q=[itex]3.20(10^{-19})C[/itex]. They are both a horizontal distance of 3 m from the y axis. What are the magnitude and direction of the net electric field produced at P at y=4 m?

Okay. So I know I can use the Dipole equation for this, but I had originally tried placing a test charge at P and adding the fields component wise.

I got the wrong answer and I was just wondering why you cannot take this approach?

This is what I had tried:

[tex]E_{px}=\sum E_x=k[\frac{-|q_1|-|q_2|}{d^2}](\frac{3}{5})=-3.836(10^{-10})[/tex]

And

[tex]E_{py}=\sum E_y=k[\frac{-|q_1|+|q_2|}{d^2}](\frac{4}{5})=0[/tex]

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Electric Field due to a Dipole

**Physics Forums | Science Articles, Homework Help, Discussion**