Answer:
Movement of electrons
Explanation:
when electrons move from a point to another, they carry along charges in the course of moving. Charges could be through metallic objects and as well could be through some conducting solution.
That leads us to Ohm's Law : it states that current flowing through a metallic conductor is directly proportional to the potential difference across its ends, provided that temperature remains constant. So for charges to flow through a conductor, there are factors to be considered.
