Visualizing {+1-1} DiPoles for UM-StL Physics 112

  • Cite/Link: http://newton.umsl.edu/~philf/dipole.html
  • This release dated 27 Feb 1996 (Copyright by Phil Fraundorf 1988-1996)
  • At UM-StLouis see also: cme, infophys, physics&astronomy, programs, stei-lab, & wuzzlers.
  • Accel-1D pages: derivations, slow-example, fast-example&twins, x-tv Plots, x-ct Plots, 4-vectors, rap.
    Electric Potential and Field Magnitude around a {+1-1} Dipole
    Here we've used 1 [coulomb] charges separated by 1 [meter]. The peaks are truncated because the Mathematica software with which these were generated chooses scale maxima and minima for such plots by default automatically. Below left: The electric potential is in [volts] or [joules per coulomb]. Below right: The electric field magnitude is in [volts per meter] or [newtons per coulomb].

    Electric Potential and Field Magnitude w/EquipPotential Lines & Field Arrows
    Below left: Note that field arrows are always perpendicular to the equipotential lines in their vicinity. Below right: Note that the field magnitudes (ignoring directions) show bilateral symmetry here.
    Note: Crazy colors and bright red are "OFF SCALE" regions in the plot. Otherwise, colors run from orange (MIN) up to magenta (MAX). To figure what MIN and MAX mean, you may need to look at the 3D plots at the top.

    Field Azimuthal Angle Phi w/Equipotential Lines & Field Arrows
    Note that Phi=0 or 360 degrees (red) points to the left, while the other colors correlate with different directions for the field arrows superposed on the image.

    Visualizing some other possible exam problems: DiWire, {+2-1} Triplets.