What is MKSA system?

The MKSA system is a metric system of units that includes the meter (M) for length, the kilogram (K) for mass, the second (S) for time, and the ampere (A) for electric current. It is a subset of the International System of Units (SI) and is used primarily in scientific contexts. The MKSA system allows for the coherent expression of physical quantities and facilitates calculations in physics and engineering.