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2. Current–voltage characteristic - Wikipedia

   en.wikipedia.org/wiki/Current–voltage...

   While I–V curves are applicable to any electrical system, they find wide use in the field of biological electricity, particularly in the sub-field of electrophysiology. In this case, the voltage refers to the voltage across a biological membrane, a membrane potential , and the current is the flow of charged ions through channels in this membrane.

3. Power-voltage curve - Wikipedia

   en.wikipedia.org/wiki/Power-voltage_curve

   Power-voltage curve (also P-V curve) describes the relationship between the active power delivered to the electrical load and the voltage at the load terminals in an electric power system under a constant power factor. [1] When plotted with power as a horizontal axis, the curve resembles a human nose, thus it is sometimes called a nose curve. [2]

4. Nodal analysis - Wikipedia

   en.wikipedia.org/wiki/Nodal_analysis

   Kirchhoff's current law is the basis of nodal analysis. In electric circuits analysis, nodal analysis, node-voltage analysis, or the branch current method is a method of determining the voltage (potential difference) between "nodes" (points where elements or branches connect) in an electrical circuit in terms of the branch currents.

5. Static electricity - Wikipedia

   en.wikipedia.org/wiki/Static_electricity

   Static electricity is an imbalance of electric charges within or on the surface of a material. The charge remains until it can move away by an electric current or electrical discharge. The word "static" is used to differentiate it from current electricity, where an electric charge flows through an electrical conductor. [1]

6. Negative resistance - Wikipedia

   en.wikipedia.org/wiki/Negative_resistance

   An I–V curve, showing the difference between static resistance (inverse slope of line B) and differential resistance (inverse slope of line C) at a point (A).. The resistance between two terminals of an electrical device or circuit is determined by its current–voltage (I–V) curve (characteristic curve), giving the current through it for any given voltage across it. [18]

7. Circulation (physics) - Wikipedia

   en.wikipedia.org/wiki/Circulation_(physics)

   Circulation of a static magnetic field is, by Ampère's law, proportional to the total current enclosed by the loop = =. For systems with electric fields that change over time, the law must be modified to include a term known as Maxwell's correction.

8. Node (circuits) - Wikipedia

   en.wikipedia.org/wiki/Node_(circuits)

   Each color in the circuit represents one node. In electrical engineering, a node is any region on a circuit between two circuit elements. In circuit diagrams, connections are ideal wires with zero resistance, so a node consists of the entire section of wire between elements, not just a single point. [1]

9. Passive sign convention - Wikipedia

   en.wikipedia.org/wiki/Passive_sign_convention

   Illustration of the "reference directions" of the current (), voltage (), and power () variables used in the passive sign convention.If positive current is defined as flowing into the device terminal which is defined to be positive voltage, then positive power (big arrow) given by the equation = represents electric power flowing into the device, and negative power represents power flowing out.