Potential difference between conductors

Reading some books there is something that i don't understand. Is the capacitors topics when they name a potential difference between conductors. As i know, Potential difference is the difference in electric potential energy per unit charge between two points.

So, talking about capacitors, the potential difference between conductors is:

a) The difference between the potential of each conductor.
b) The difference of potential between those 2 points: (conductor)·     ·(conductor)

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Your question isn't very clear, what are you asking? – Hawk May 1 '12 at 20:27

Electrical conductors are equipotential surfaces. So both of your choices give the same answer.

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But which would be the correct analogy? – nEAnnam May 1 '12 at 20:33
Analogy to what? – Vijay Murthy May 1 '12 at 20:35
Sorry, its so hard to explain, i mean, which one would be your first thought about potential difference between conductors. – nEAnnam May 1 '12 at 20:40
I am lost. Both your choices are correct for the case of conductors. So what is the confusion here? – Vijay Murthy May 2 '12 at 8:56