Four identical positive point charges, each having charge q, are initially at rest at infinite separation...

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Four identical positive point charges, each having charge q, are initially at rest at infinite separation see the figure below (a) Calculate the total work required to move the point charges to the four corners of the square of edge length a by separately calculating the work required to sequentially move each charge to its final position. (b) Show that the below Equation gives the total work. +4 +9 +9 D +q Four identical positive point charges, each having charge q, are initially at rest at infinite separation see the figure below (a) Calculate the total work required to move the point charges to the four corners of the square of edge length a by separately calculating the work required to sequentially move each charge to its final position. (b) Show that the below Equation gives the total work. +4 +9 +9 D +q