(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

The electric field midway between two equal but opposite point charges is 894 N/C, and the distance between the charges is 17.2 cm. What is the magnitude of the charge on each?

2. Relevant equations

E = Fe/q

Fe = kq1q2/r^2

3. The attempt at a solution

Electric field = k*q/r^2 = 447 N/C. You know r and k, so just solve for q.

I tried about 5 times already and it is always wrong my most recent attempt I divided the Electric Field by two so I had 446 N/C = 8.99e9 * q/.172^2. But it was wrong.

I might have typed this up wrong but I am new here, sorry. If you guys could help me that'd be great. Thank you.

**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 Fields help

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