I have learned that electric field lines goes from higher potential to lower potential. First of all, how does this happen?
And if the above is the case then suppose I have two uniformly positively charged conducting spheres. The charge on one is greater than on the other, and they are initially separated by infinite distance. Here, the electric potential of the sphere having more charge is greater than the potential of other having lesser charge, so according to the above statement, the electric field should go from higher to lower potential. However, since both spheres are positively charged, the electric field lines should not be continuous from one sphere to another; in fact, there will be a null plane between them. (Both spheres produce their own electric fields directed away from the spheres.) So how is this contradiction resolved? Please explain the core concept.
Also if in above case both the spheres are joined through a conducting wire, then charge flows till the potential are equal. How does this happen? If the field is not continuous, then how does charge flow from higher potential sphere to the lower potential sphere?