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In electrostatics, the coefficients of potential determine the relationship between the charge and electrostatic potential (electrical potential), which is purely geometric: : where ''Q''i is the surface charge on conductor ''i''. The coefficients of potential are the coefficients ''p''ij. φi should be correctly read as the potential on the i-th conductor, and hence "" is the p due to charge 1 on conductor 2. : or more formally : Note that: # ''p''ij = ''p''ji, by symmetry, and # ''p''ij is not dependent on the charge, The physical content of the symmetry is as follows: : if a charge ''Q'' on conductor j brings conductor i to a potential φ, then the same charge placed on i would bring j to the same potential φ. : In general, the coefficients is used when describing system of conductors, such as in the capacitor. ==Theory== ''System of conductors. The electrostatic potential at point P is where ''R''ji = " TITLE="equipotential surface or the point ''P'' chosen on surface i) contained in a system of conductors j = 1, 2, ..., ''n'': : where ''R''ji = ">ri - rjle\sigma_j\rangle f_j = \fracf_j. Then, : i.e. : 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Coefficients of potential」の詳細全文を読む スポンサード リンク
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