The electric field is zero at a point along the line joining two charges. (a) Are the signs of the two charges equal or opposite? Explain. (b) Can the potential be zero at any point along the line? Explain.
electric field due to a + ve charge is radially outwards
and that of -ve charge is inwards
so if two opposite charges are places closer to each other, due to the action of
fields they interact and atttracts
if the two same charges say either +v3 or -ve are placed, then repuslive forces acts on them
so yes , it is possible for NEt EF to be zero in between two same charges.
potential can also be ib between two opposite charges
as net Potential is sum of all individual potentials
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