YP Electric Field 1.0 - Science program simulates up
to 26 points on a same vector
plane. YP Electric Field
simulates up to 26 point
charges (located in the same
plane) and draws the lines of
force, the equipotential lines
and the electric field vectors
in the area surrounding the
electric charges. The user can
move the charges and change
their numerical value. A probe
displays the electric
potential and the magnitude
and direction of the magnetic
field at any position.