Alternatively , the electrodes can be left floating , allowing a streaming potential to build up between the two ends of the channel .
When both electrodes are held at the same potential , the streaming current is measured directly as the electric current flowing through the electrodes .
The electrodes can be left floating , allowing a streaming potential to build up between the two ends of the channel .
When both electrodes are held at the same potential , the streaming current is measured directly as the electric current flowing through the electrodes .