Question

A -18nC point charge and a 12nC point charge are separated by a distance of 15cm....

A -18nC point charge and a 12nC point charge are separated by a distance of 15cm.

A) Find the point where the net electric field is zero. Show a sketch by marking all the distances involved.

B) Find the electric potential at the point where the electric field is zero (i.e at same point as in part A).

C) Calculate the potential energgy of the two charge system. Give answer in Joule.

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