Electric Field around a Charged Ring

This Demonstration shows the electric field around a uniformly charged ring, either as a force vector on a movable test particle, as a collection of field lines, or as a 3D vector field. The radius of the ring changes, becoming a point charge in the limit as the radius approaches zero. By default, the field lines and vector field views are switched off; switching on the latter, in particular, slows down the response time.


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