A positive point charge \(+2q\) is fixed at \(x = 0\), and a negative point charge \(-q\) is fixed at \(x = d\) along an \(x\)-axis. At point \(P\), located on the axis at \(x = \dfrac{2}{3}d\), the net electric potential is zero (\(V = 0\)), but the net electric field is non-zero (\(\vec{E} \neq \vec{0}\)). Which of the following statements provides the correct physical explanation for this observation?