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Homework Statement
In a model for the hydrogen atom, an electron is in circular orbit at mean distance Ro from the nucleus.
Sketch U as a function of separation distance r. Write an algebraic expression for the electric potential energy U for a model of this system, i.e. charges +e and -e separated by distance Ro. Be sure to state the reference you have used for zero potential energy.
The attempt at a solution
The only relevant (?) formula I could find is this one:
V=q/(4pi*εo*r)
How I can sketch the function or write the algebraic expression from that is beyond me though..
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