Electrostatic field lines do not form closed loops. why?

Asked by K Sudhakar | 11th Feb, 2012, 08:08: PM

Expert Answer:

Electric field lines reveal information about the direction (and the strength) of an electric field within a region of space.
  • Electric field lines always extend from a positively charged object to a negatively charged object, from a positively charged object to infinity, or from infinity to a negatively charged object.
  • Electric field lines never cross each other.
  • Electric field lines are most dense around objects with the greatest amount of charge.
  • At locations where electric field lines meet the surface of an object, the lines are perpendicular to the surface.

 Objects with greater charge create stronger electric fields. By surrounding a highly charged object with more lines, one can communicate the strength of an electric field in the space surrounding a charged object by the line density. This convention is depicted in the diagram below.

electric field lines involves drawing the lines of force perpendicular to the surfaces of objects at the locations where the lines connect to object's surfaces.there is never a component of electric force that is directed parallel to the surface. The electric force, and thus the electric field, is always directed perpendicular to the surface of an object. Once a line of force leaves the surface of an object, it will often alter its direction. 

Answered by  | 12th Feb, 2012, 07:04: AM

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