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

Your Open QuestionShow me another »

Electric field help, please?

Find the electric field at P in the figure shown below. (Take r = 1.5 m and θ = 41°. Measure the angle counterclockwise from the positive x-axis.)

http://i834.photobucket.com/albums/zz264/kpw0629/1-1.gif

2. Relevant equations

E=(8.99e9*q)/r^2

3. The attempt at a solution

Ive been doing (8.99e9*q)/r^2=a and then multiplying a by sin of 41 degrees=b. Then, multiplying b by 2=.58 because theyre the same force and you add them together, but that's not right and I don't know what to do differently. I feel like the angle would also be 41 (or 319) because they're even forces but I don't know.

Thanks for any help.

(8.99e9*1/9e-9)/1.5^2=.4439*sin41=.29*2=.58

**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 of Two Charges

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