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The convention that current flows from an area of positive charge to one of negative charge. In reality the electrons, and hence the current, travel from an area of negative charge to one of positive charge.

Related Terms


A charge made for a service performed in a terminal area typically referring to handling associated with receipt, delivery, or inspection of cargo via land-based operations.


A quasi-circular movement of water whose area is relatively small in comparison to the current with which it is associated. Eddies may be formed between two adjacent currents flowing counter to each other and where currents pass obstructions, especially on the downstream side.


The current per unit cross-sectional area of a conductor; a specialization of the physics definition. Also known as electric current density.


The electrical resistance offered by a material to the flow of current, times the cross-sectional area of current flow and per unit length of current path; the reciprocal of the conductivity. Also known as resistivity; specific resistance.


A transistor region from which charge carriers that are minority carriers in the base are injected into the base, thus controlling the current flowing through the collector; corresponds to the cathode of an electron tube. Symbolized E. Also known as emitter region.


The charge per unit area on a surface or per unit volume in space.


An induction furnace in which current flow at the commercial power-line frequency is induced in the charge to be heated.


Formed by part of the Tsushima Current and river dis- charge in Tatar Strait, the coastal Liman Current flows southward in the western part of the Sea of Japan. During winter, it may reach as far sout


  1. Charts on which tidal current data are depicted graphically. 2. Tidal Current Chart, as published by the National Ocean Survey, part of a set of charts which depict, by means of arrows and figures, the direction and velocity of the tidal current for each hour of the tidal cycle. The charts, which may be used for any year, present a comprehensive view of the tidal current movement in the respective waterways as a whole and also supply a means for readily determining for any time the direction and velocity of the current at various localities throughout the water area covered.


Declaration of Inspection - a specific checklist of certain tasks which are required to be completed prior to a oil, gas, or liquid hazardous material transfer over water in the United States. It is to be completed by the persons in charge from the terminal facility, barge, truck, or vessel and the vessel discharging or receiving the product(s). Both parties must sign all points on this checklist. The form must be made available for inspection teams from the USCG when requested, not just for current transfers, but for previous transfers as well.

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