MKSA system

In this chapter all equations are written in a form for which any consistent system of units may be used. The table of nomenclature gives illustrative units in the MKSA system. By definition,... 

All equations are given on a dimensionally consistent basis and can be used with any dimensionally consistent units. The illustrative units given in the following are based on the MKSA system, using the rational basis for electrical units. For the cgs-esu (irrational) system, the corresponding cgs-esu units would be used and the permittivity, e, would have a value ofl/(47r). Universal constants and defined values are represented by a symbol in Gothic (sans serif) or in bold face type. 

To go further on with the dependence of bubbles radii with some few parameters, we can also replace in the latter equation the diffusion coefficient Do by its theoretical expression approached through the well-known Stokes-Einstein equation (Dq k d /Snpd). The following relationship expressed in the MKSA system was thus obtained ... 

Equations (10)-(17) are given in the MKSA system, although it is still usual practice to quote experimental values in the Gaussian cgs sj stem (in which these equations have a slightly different form). Furthermore, it is common to attribute to magnetic fields II the units of gauss (instead of oersted). 

Given two popular systems of units, SI (= Systeme International, or rationalized MKSC, or Giorgi, or MKSA) and the older cgs (centimeter-gram-second) system, we give first two fundamental equations, Coulomb s law of 1785 and Ampere s64 law of 1826, in both systems. 

Example In the MKSA (meter-kilogram-second-ampere) system of units, length, mass, time and current are the fundamental measurables, symbolically represented by L, M, T, and I. Therefore we say that velocity has the dimensions LT. Energy has the dimensions ML2T2. 

MKSA. The system of physical units based on the fundamental metric units meter kilogram, second and ampere. 

MKSA meter-kilogram-second-ampere system... 

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