Electron current vs. conventional current In a circuit connected to a battery, the electrons are the charge carrier and flow from the battery’s negative terminal, around the circuit and back to ...

The direction of conventional current is the direction marked on all circuit diagrams. The symbol for electric current is I. Test: Conventional current or free electron flow?

This has come to be known as conventional current flow. Then in 1897, British physicist Thompson, discovered that current flow was really electrons as he was doing some research on a crt.