In this circuit the arrow indicates the direction of current flow. If the arrow points in the same direction of the positive charge carriers (conventional current flow) the numeric vale of the current receives a positive sign, +2A. If current flow is opposite (electron flow), the numerical value receives a minus sign, -2A. The sign indicates the direction of current flow with the arrow ( + ) or in reverse ( – ).
Then Conventional Current Flow gives the flow of the electrical current from positive to negative and Electron Current Flow around a circuit from the negative terminal to the positive. The item which provides a path for the electrons to flow is called the conductor.