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College Physics

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Now we also know that the charge on a pair of parallel plates is proportional to the potential difference V, namely
We also know that the capacitance of two parallel plates is given by
where ε0=8.85×10-12 is the permittivity of free space and d is the separation between the plates. Combine these equations and to get the force as a function of the potential. So now if you were to make a graph of force (F) vs. V2/d2, the slope of the graph would be

A) E
B) ε0A/2
C) C
D) ε0

  • College Physics -

    It's B

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