Recent content by zdotcom

Homework Statement When the potential is constant throughout a given region of space, is the electric field in the region also zero? Homework Equations in a parallel plate capacitor, electric filed = - delta V / delta d The Attempt at a Solution It is difficult to understand how...

Thanks and I have some follow on question. for the voltage increase: I see your point and it make sense mathematically and logistically. It just runs a little against the grain to think the voltage would increase when the plates are pulled apart. for the energy stored increase: so...

Homework Statement charge a plate capacitor, disconnect the battery, increase the distance between the plates: capacitance decreases (C=keA/d, as d increases, C must decrease), V increases (q=CV, q is constant, C decreases, V must increase), electric field stays constant (E=V/d, both V and...

I am trying to solve a similar problem and I have a question. How did you get this one: "-v2i + v1i = -v1f + v2f" ? how is this derived? How did ou determine "-v1f + v2f" where v1f is negative if mass is not part of the equation? Besides, if v1f is negative, then shouldn't v1f...

I am trying to solve a similar problem and I have a question. How did you get this one: "-v2i + v1i = -v1f + v2f" ? how is this derived? How did ou determine "-v1f + v2f" where v1f is negative if mass is not part of the equation?