From anode to cathode.
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Electrons flow from a region of higher potential (voltage) to a region of lower potential, which is typically from the negative terminal to the positive terminal of a power source in a circuit. This flow of electrons is known as electron current.
It depends on the electronic theory you use. In most conventional applications, we use electron-flow theory in which case the electricity flows from the negative side of the cell to the positive side. In some applications such as nuclear energy, we use hole-flow theory in which the electricity goes from positive to negative.
For most purposes the first answer is correct, but either way you go, the lightbulb will still light up.
In a galvanic cell, electrons flow from the anode to the cathode. The flow is stopped if the cell lacks a path for the ions to flow between the solutions in the cell.
Electrons flow from the negative battery terminal to the positive battery terminal.
Electrons flow from the anode to the cathode in an electrical circuit.
In a circuit, electrons flow from the negative terminal to the positive terminal of the voltage source (such as a battery). This flow of electrons is opposite to the conventional current direction, which is from positive to negative. So, while electrons themselves move in one direction, the conventional current moves in the opposite direction.
The force that causes electrons to flow in the same direction is an electric field. When a voltage is applied across a conductor, an electric field is established which exerts a force on the electrons, causing them to move in the same direction through the conductor.
A unidirectional flow of electrons is known as direct current (DC). In a DC circuit, the electrons flow in a constant direction from the negative terminal to the positive terminal of the voltage source.
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