. what is the different between CGS system and MKS system?

Answer 1

The CGS (centimeter, gram, second) system and the MKS (meter, kilogram, second) system use different fundamental units of length and mass so the derived units are different (and have different names).

Aside from that, they're pretty much the same.


Doug

Answer 2

The centimeter-gram-second system (CGS) is a system of physical units. It is always the same for mechanical units, but there are several variants of electric additions. It was replaced by the MKS, or metre-kilogram-second system, which in turn was replaced by the SI system, which has the 3 base units of MKS plus the ampere, mole, candela and kelvin.

CGS units are still occasionally encountered in older technical literature, especially in the United States in the fields of electrodynamics and astronomy. SI units were chosen such that electromagnetic equations concerning spheres contain 4π, those concerning coils contain 2π and those dealing with straight wires lack π entirely, which was the most convenient choice for electrical-engineering applications. In those fields where formulas concerning spheres dominate (for example, astronomy), it has been argued that the CGS system can be notationally slightly more convenient.

Starting from the international adoption of the MKS standard in the 1940s and the SI standard in the 1960s, the technical use of CGS units has gradually disappeared worldwide, in the United States more slowly than in the rest of the world. CGS units are today no longer accepted by the house styles of most scientific journals, textbook publishers and standards bodies.

The units gram and centimetre remain useful within the SI, especially for instructional physics and chemistry experiments, where they match well the small scales of table-top setups. In these uses, they are occasionally referred to as the system of “LAB” units. However, where derived units are needed, the SI ones are generally used and taught today instead of the CGS ones.

Answer 3

Mks Cgs

Answer 4

CGS=[L][M][T]=[cm][gm][sec]
MKS=[L][M][T]=[m][kg][sec]=(10^3)(10^3)[cm][gm][sec]=10^6[CGS]

just the magnitude diff.