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

A point charge of -8 µC is at the origin. What is the electric potential at

(a) (3.0m, 0),

(b) (-3.0m, 0), and

(c) (3.0m, -3.0m)?

2. Relevant equations

V=kq/r

3. The attempt at a solution

a & b) V=(8.99x10^9)(-8x10^-6)/3

V= -23973.3

c) V=(8.99x10^9(-8x10^-6)/6

I understand part a and b and got the correct answer. However, for part c, the only thing I am doing different is r=6 instead of 3 because the coordinates are (3.0m, -3.0m) and I am not getting the correct answer. I don't really understand. 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 Potential Produced by Point Charge

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