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

A given system has the equipotential surfaces shown in the figure .

http://session.masteringphysics.com/problemAsset/1122530/1/Walker.20.39.jpg

A)What is the magnitude of the electric field?

B)What is the direction of the electric field? (in degrees from the +x axis)

C)What is the shortest distance one can move to undergo a change in potential of 1.50 V?

2. Relevant equations

E=-V/R

3. The attempt at a solution

I found the answer to the Part A:

E= -V/R, R=4sin(26.565)

E=559 V/M

I cannot wrap my head around the answer to Part B, though. I thought it would simply be 180-25.65, but that's wrong. Any help?

I also know how to do Part C, so just Part B would be great!

**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: Equipotential Surfaces and Electric Field

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