What is the MKSA or SI unit of electric charge?
Electric charge charged particles, and how their interactions are mediated by photons, is called quantum electrodynamics. The SI derived unit of electric charge is the coulomb (C) named after French physicist Charles-Augustin de Coulomb. In electrical engineering, it is also common to use the ampere-hour (Ah); in physics and chemistry, it is common to use the elementary charge ("e" as a unit). Chemistry also uses the Faraday constant as the charge on a mole of electrons. The symbol "Q" often denotes charge. Charge is the fundamental property of forms of matter that exhibit electrostatic attraction or repulsion in the presence of other
Electric charge it is meaningful to speak of fractions of a charge; for example in the charging of a capacitor, or in the fractional quantum Hall effect. The unit faraday is sometimes used in electrochemistry. One faraday of charge is the magnitude of the charge of one mole of electrons, i.e. 96485.33289(59) C. In systems of units other than SI such as cgs, electric charge is expressed as combination of only three fundamental quantities (length, mass, and time), and not four, as in SI, where electric charge is a combination of length, mass, time, and electric current. From ancient times, persons were