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2. Ohm's law - Wikipedia

   en.wikipedia.org/wiki/Ohm's_law

   The two resistors follow Ohm's law: The plot is a straight line through the origin. The other two devices do not follow Ohm's law. There are, however, components of electrical circuits which do not obey Ohm's law; that is, their relationship between current and voltage (their I–V curve) is nonlinear (or non-ohmic).

3. Interchangeable parts - Wikipedia

   en.wikipedia.org/wiki/Interchangeable_parts

   Interchangeability of parts was achieved by combining a number of innovations and improvements in machining operations and the invention of several machine tools, such as the slide rest lathe, screw-cutting lathe, turret lathe, milling machine and metal planer. Additional innovations included jigs for guiding the machine tools, fixtures for ...

4. Kirchhoff's circuit laws - Wikipedia

   en.wikipedia.org/wiki/Kirchhoff's_circuit_laws

   A matrix version of Kirchhoff's current law is the basis of most circuit simulation software, such as SPICE. The current law is used with Ohm's law to perform nodal analysis. The current law is applicable to any lumped network irrespective of the nature of the network; whether unilateral or bilateral, active or passive, linear or non-linear.

5. Voltage drop - Wikipedia

   en.wikipedia.org/wiki/Voltage_drop

   If the voltage between the DC source and the first resistor (67 ohms) is measured, the voltage potential at the first resistor will be slightly less than nine volts. The current passes through the conductor (wire) from the DC source to the first resistor; as this occurs, some of the supplied energy is "lost" (unavailable to the load), due to ...

6. Propagation of uncertainty - Wikipedia

   en.wikipedia.org/wiki/Propagation_of_uncertainty

   A practical application is an experiment in which one measures current, I, and voltage, V, on a resistor in order to determine the resistance, R, using Ohm's law, R = V / I. Given the measured variables with uncertainties, I ± σ I and V ± σ V, and neglecting their possible correlation, the uncertainty in the computed quantity, σ R, is:

7. Reciprocity (electromagnetism) - Wikipedia

   en.wikipedia.org/wiki/Reciprocity_(electromagnetism)

   More precisely, Feld-Tai reciprocity requires the Hermitian (or rather, complex-symmetric) symmetry of the electromagnetic operators as above, but also relies on the assumption that the operator relating and is a constant scalar multiple of the operator relating and (/) , which is true when ε is a constant scalar multiple of μ (the two ...

8. Interchangeability - Wikipedia

   en.wikipedia.org/wiki/Interchangeability

   Interchangeability can refer to: Interchangeable parts, the ability to select components for assembly at random and fit them together within proper tolerances; Interchangeability (computer science), the ability that an object can be replaced by another object without affecting code using the object; Interchangeable random variables in mathematics

9. Thermal conductance and resistance - Wikipedia

   en.wikipedia.org/wiki/Thermal_conductance_and...

   A 2008 review paper written by Philips researcher Clemens J. M. Lasance notes that: "Although there is an analogy between heat flow by conduction (Fourier's law) and the flow of an electric current (Ohm’s law), the corresponding physical properties of thermal conductivity and electrical conductivity conspire to make the behavior of heat flow ...