U EP. NOTE: We have used two symbols for potential energy and U EP Better to use rather than in most cases so as not to be E. confused with the electric field The following figures illustrate graphically the electric field and electric potentials surrounding a positive charge of + 20 C and a negative charge of -20 C. When , so, to avoid this problem the maximum values for the electric field and electric potential are set to some arbitrary saturation value in all graphs. Single positive point charge +20 C Electric field (magnitude): positive point charge +20 C. Electric field: positive point charge + 20 C. The vectors only show the direction of the electric field and not the magnitude.
NOTE: We have used two symbols for potential energy U and EP. Better to use U rather than EP in most cases so as not to be confused with the electric field E. The following figures illustrate graphically the electric field and electric potentials surrounding a positive charge of + 20 C and a negative charge of -20 C. When , so, to avoid this problem the maximum values for the electric field and electric potential are set to some arbitrary saturation value in all graphs. Single positive point charge +20 C Electric field (magnitude): positive point charge +20 C. Electric field: positive point charge + 20 C. The vectors only show the direction of the electric field and not the magnitude.