What is Physical coefficient?
A '''physical coefficient''' is an important number that characterizes some physical property of a technical or scientific object. ==Examples of Physical Coefficients== # ''[[coefficient of thermal expansion|Coefficient of Thermal Expansion]]'' ([[thermodynamics]]) (dimensionless) - Relates the change in temperature to the change in a material's dimensions. # ''[[Partition Coefficient]]'' (''K<sub>D</sub>'') ([[chemistry]]) - The ratio of concentrations of a compound in two phases of a mixture of two immiscible solvents at equilibrium. # ''[[Hall Effect|Hall coefficient]]'' (electrical physics) - Relates a magnetic field applied to an element to the voltage created, the amount of current and the element thickness. It is a characteristic of the material from which the conductor is made. # ''[[Lift Coefficient]]'' (''C<sub>L</sub>'' or ''C<sub>Z</sub>'') ([[Aerodynamics]]) (dimensionless) - Relates the lift generated by an airfoil with the dynamic pressure of the fluid flow around the airfoil, and the planform area of the airfoil. # ''[[Ballistic coefficient]]'' (BC) ([[Aerodynamics]]) (units of kg/m²) - A measure of a body's ability to overcome air resistance in flight. BC is a function of mass, diameter, and drag coefficient. # ''[[Transmission coefficient (physics)|Transmission Coefficient]]'' ([[quantum mechanics]]) (dimensionless) - Represents the probability flux of a transmitted wave relative to that of an incident wave. It is often used to describe the probability of a particle [[Quantum tunnelling|tunnelling]] through a barrier. # ''[[Damping|Damping Factor]]'' a.k.a. ''viscous damping coefficient'' (Physical Engineering) (units of Newton-seconds per meter) - relates a damping force with the velocity of the object whose motion is being dampened. # ''[[Coefficient of friction]]'' (dimensionless) which could be ''static'' or ''dynamic'' - it relates [[friction]], a [[Force (physics)|force]] resisting motion between things touching each other, to a ''normal force'', a force pushing the things togethe