Physics Help Forum Electrical potential enegry

 May 24th 2009, 09:04 AM #2 Physics Team   Join Date: Feb 2009 Location: India Posts: 365 Dear blush, what is the problem with this question ? Use simple formula for the potential due to a point charge- $\displaystyle V = \frac{1}{4\pi\epsilon_0}\frac{Q}{r^2}$ $\displaystyle Q = 1.6*10^{-19} C$