Field Lines from 2 Like Charges

• Note the field lines from 2 like charges are quite different from the field lines of 2 opposite charges (the electric dipole)

  • There is a zero halfway between charges
  • r>>a: looks like field of point charge (+2q) at origin.

http://wug.physics.uiuc.edu/courses/phys112/fall98/acts/lect02/act02b/sld001.htm

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