Hello. This is my first time here, so let me know if I'm doing anything wrong "posting-wise."(adsbygoogle = window.adsbygoogle || []).push({});

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

The electric potential in a region of space is V= (260 x^2 - 180 y^2) V, where x and y are in meters.

What is the strength of the electric field at (2.00 m, 3.00 m) ?

x = 2.00 m

y = 3.00 m

2. Relevant equations

E = -grad(V)

3. The attempt at a solution

E = -grad(V) = -(520(x) - 360(y)) = -(-40) = 40

I feel really stupid because it's not the right answer... What am I doing wrong? Thanks in advance!

**Physics Forums - The Fusion of Science and Community**

# Strength of an Electric Field

Know someone interested in this topic? Share a link to this question via email,
Google+,
Twitter, or
Facebook

Have something to add?

- Similar discussions for: Strength of an Electric Field

Loading...

**Physics Forums - The Fusion of Science and Community**