In which direction do electrons flow in a circuit?

Electrons flow in a circuit from the negative terminal to the positive terminal. This movement is due to the nature of electric charge: electrons carry a negative charge and are repelled by negative charges while being attracted to positive charges.

In a typical circuit setup, the negative terminal of a power source has an excess of electrons, while the positive terminal has a deficiency of electrons. When the circuit is closed, the electrons flow through the conductor (like a wire) towards the positive terminal, completing the circuit.

Understanding this fundamental concept is crucial for grasping how electrical components function and interact in various applications. The other options either confuse the direction of flow or misrepresent how charges interact in a circuit environment.