The mathematical expression of a property of a point in space, measuring
the tendency which existing electric forces would have to drive an
electrified unit particle away from or prevent its approach to the point
in question, according to whether the point was situated at or was at a
distance from the point in question.
Potential is not the power [...]

A difference of potential in a circuit, or in part of a circuit, which
difference produces or is capable of producing a current, or is due to
the flow of such current.
It may be expressed as the fall in potential or the electro-motive force
included between any two points on a circuit. The current in an active
circuit is [...]

If of any two points the absolute potentials are determined, the
difference between such two expresses the potential difference.
Numerically it expresses the quantity of work which must be done to
remove a unit of electricity from one to the other against electric
repulsion, or the energy which would be accumulated in moving it the
other way.
A positively charged particle [...]

Unchanging potential or potential difference.
The ordinary system of incandescent lighting is a constant potential
system, an unvarying potential difference being maintained between the
two leads, and the current varying according to requirements.

The absolute electrical potential at a point possesses a numerical value
and measures the tendency which the existing electric forces would have
to drive an electrified particle away from or prevent its approach to
the point, if such a particle, one unit in quantity, were brought up to
or were situated at that point. It is numerically equal to [...]

Potential in general may be treated as an attribute of a point in space,
and may express the potential energy which a unit mass would have if
placed at that point.
This conception of potential is that of a property attributable to a
point in space, such that if a unit mass were placed there the forces
acting upon it [...]

Many pieces of electric apparatus of English manufacture are thus
qualified, indicating that they are of the pattern of the apparatus used
by the British Post Office in its telegraph department.

The kind of electricity with which a piece of glass is charged when
rubbed with silk; vitreous electricity.
In a galvanic cell the surface of the copper or carbon plate is charged
with positive electricity. (See Electrostatic Series.)
According to the single fluid theory positive electrification consists
in a surplus of electricity.
[Transcriber's note: "Positive electricity" is a deficiency of electrons.]

The direction which lines of force are assumed to take in the air or
outer circuit from a positive to a negative region. It applies to
electrostatic, to magnetic and to electro-magnetic lines of force.

An instrument for determining the position of objects which are to be
fired at from forts. It is designed for use from forts situated on the
water.
Fiske’s position finder may be thus generally described. On a chart the
channel is divided into squares, and the position finder determines the
square in which a vessel lies. For each square the [...]