QUESTION
A single NEGATIVE charge is fixed at the origin.
- What is the sign of the potential difference between A and B? (VAB º VB - VA )
- Imagine placing a positive charge at point A and determining whether positive or negative work would be done in moving the charge to point B.
- A positive charge at A would be attracted to the negative charge;
- therefore NEGATIVE work would be done to move the charge from A to B.
- Think graphically or from the definitions