2012-02-06, 04:25 PM
Ew, I should've come into this thread earlier.
Just FYI for potential energy (U), it's the negative integral of the force (k Q q over R squared, the electric field) from infinity to r. They decided to define the potential energy at infinity 0.
Just FYI for potential energy (U), it's the negative integral of the force (k Q q over R squared, the electric field) from infinity to r. They decided to define the potential energy at infinity 0.