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

A positive charge of magnitude qo is shown in the diagram below. Points B and C are a distance r away from the charge and point A is a distance 2r from it.

1. Would the absolute value of work done by an external agent in moving the same test charge from point B to C be greater than, less than, or equal to from point A to B

2. Would the absolute value of the work done by an external agent in moving the same test charge from point A to C be greater than, less than, or equal to from point A to B?

2. Relevant equations

W = Fd

3. The attempt at a solution

1. Work from A to B to be would be negative because the distance is in the opposite direction of the force being exerted. From B to C would be 0 because the first half of the path has a negative work done and the second half of the path has a positive work being done. The absolute work done would be 0 because both paths have equal magnitude but different direction. Therefore, work from point B to C would be greater than from point A to B

2. I really have no idea about this problem. From A to C and from A to B are both negative, which makes the problem incomparable. All I know is that A to C has a longer distance than from A to B. However, I cannot compare their forces...

**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 question

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