Field lines Definition and 206 Threads

Why are electric field lines always crossing equipotential lines at right angles? Can somebody please explain this to me? Thanks :smile:

Why are electric field lines always crossing equipotential lines at right angles? Can somebody please explain this to me? Thanks :smile:

Hello everyone, I am trying my best to do this simulation on Matlab to show the expancion of Magnetic field lines out of a coil. Now, finding the amplitude and direction of the field at a given place is pretty simple, the trick is to produce those tidy lines we all see in books, i gather they...

the concept of electric field lines are came into existence to satisfy the special theory of relativity which implies that action of electrostatic forces can not be instantaneous but takes some time to act on teh other charge i.e. if a charge produces an electric field then its effect will be...

Can anyone help me to understand why equipotential surfaces must always be perpendicular to the electric field lines that pass through them? My textbook gives what seems to be a simple mathematical explanation, but the logic is escaping me. It states that dV= -E.ds = 0, (where the "."...

I'm looking for some software that will allow me look at equipotential electric field lines for various structures in two dimensions. Any thoughts? I remember I ran into a good looking utility when I was researching antenna design, but now I can't find it...