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

Three positive charges are arranged in a rectangle. The charge in the bottom left corner is +5.63 nC, in the top left corner is +5.64 nC, and in the bottom right corner it is +11.28 nC. The sides have a length of 0.639 m and .213 m. Find the magnitude of the electric field at the fourth corner of the rectangle. Answer in units of N/C.

2. Relevant equations

E = kq / r^2

3. The attempt at a solution

E for bottom left : k(q) / (.67356m)^2 = 111.53 N/C

E for top left : kq/ (.213m)^2 = 1117.28 N/C

E for bottom right : kq / (.639m)^2 = 248.284 N/C

Then I drew these Electric fields on an x-y axis and they all ended up in quadrant one. So I then found the x an dy components of each. Ex total was 1196.14 and Ey total was 327.148

Finally I found the Electric field for 4th corner by using the x and y compoenents and it turned out to be 1240.07 N/C .

for some reason Im not wholly assured that my answer is correct. Can you please look over and tell me if there is anything wrong with my problem solving approach. Thank you very much =]

**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 and rectabgle

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