Question: An electron and a proton are fixed at the vertices of an equilateral triangle with sides of length (a). (a) What is the potential (relative

An electron and a proton are fixed at the vertices of an equilateral triangle with sides of length $a$.

(a) What is the potential (relative to zero at infinity) at the apex of the triangle. $(b)$ Find the work required to move a particle with charge $Q$ from infinity to the center of the line joining the fixed electron and proton? $\bullet$

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