DESCRIPTION:
Suppose we have a positive point charge sitting right
on top of a negative electric charge, so that the total
charge exactly cancels out. Then there is no electric
field anywhere in space. Now suppose we pull these two
charges apart. In this animation, we ignore the effects
of radiation. As the charges are pulled apart, we initiallly
see the classic electric dipole field pattern. As the
charges are moved further apart, we see the usual electric
field of a point charge. We artificially terminate the
field lines at a fixed distance from the charges to
avoid visual confusion.
|
|