The discussion centers on the derivation of electric potential from the force equation F = K/r^3, leading to the expression for electric potential as V = -K/2r^2. The integration of the force with respect to displacement, Fdr, is highlighted as the method to arrive at this result. The key point of confusion is the appearance of the factor of 2 in the denominator, which is clarified through the integration process of the power function where n = -3.
PREREQUISITESStudents preparing for the GRE Physics exam, educators teaching electrostatics, and anyone seeking to deepen their understanding of electric potential and force relationships in physics.
Standard rules. What's the integral of xn.dx? Now put n = -3.PsychonautQQ said:Homework Statement
http://grephysics.net/ans/9277/87
Can somebody explain to me why the electric potential = -K/2r^2?
If you integrate Fdr and F = K/r^3, where does the 2 in the denominator come from?