The Potential of a point

  • Thread starter phm
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  • #1
phm
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Homework Statement


Point X is 0.25m away from a point charge of +4.7 X 10-8C, point Y is 0.65m away. What is the potential of point X with respect to point Y?


Homework Equations


V= kQ/d


The Attempt at a Solution


I was able to find the potential of X using V=kQ/d with respect to the point charge, which equals 1.7 X 103 V, but I'm not sure as to how to find it with respect to the Y point.

Homework Statement





Homework Equations





The Attempt at a Solution

 

Answers and Replies

  • #2
tiny-tim
Science Advisor
Homework Helper
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Welcome to PF!

Hi phm! Welcome to PF! :smile:
… I was able to find the potential of X using V=kQ/d with respect to the point charge, which equals 1.7 X 103 V, but I'm not sure as to how to find it with respect to the Y point.

The whole point of having potentials is that they don't depend on path (so they are only defined for conservative forces) …

so the potentials just add and subtract as ordinary scalars (ordinary numbers) …

just like gravitational potential energy! :wink:
 

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