http://img168.imageshack.us/img168/3786/66134795.png [Broken](adsbygoogle = window.adsbygoogle || []).push({});

Part one was simple enough, just insert the variables in the equation given

V = (5)(9^{2})(7) - (9)(9)(6) - (9)(7^{2}) = 1908 V

Part two, three and four is where I am getting confused.

Usually I would use triangles to figure out components but I am unable to figure out the direction of the field just based on the information given.

I'm not sure if I am thinking about this the wrong way or if I am misunderstanding some of the information given. Any thoughts that could get me thinking in the right direction would be greatly appreciated. Thanks in advance.

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

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: Position Varying Electric Potential

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