Yet another quick one I bet one of you will be able to explain in twenty seconds.(adsbygoogle = window.adsbygoogle || []).push({});

Going over Electric on my own and I've come across the basics of Potential Difference, when looking at it between points (not in a field) it is defined as electric potentials being different at two points creates a potential difference which allows the flow from one point to the other. Potential difference is represented by "V" in both of my textbooks (I know it is U in other places).

Now skipping ahead slightly and I meet Electric Potential in a field. Also denoted by "V". Is this due to a relation between the two?

Is it as simple as Potential Difference is a change in Electrical Potential between the two points (a difference of V between the two points?), so you "could" say it as V_{2}- V_{1}? Hence why they are both called V?

As a similar point, are the equations for the types of P.d different due to looking at different "systems", i.e. when the equation V=IR is used, this is because you are looking at a conductor which will have a voltage drop associated with it?

Whereas when you are looking at an electrical field, the equation V=Q/4∏εr is used because....?

Cheers guys/girls. :)

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# Electrical Potential - Difference, Field

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