Electricity is electrons – the negative charge which orbits around the nucleus of an atom. Coulomb The Coulomb is the measure of the quantity of electrons. Just as litres or gallons is used to measure the quantity of a liquid, Coulombs is used to measure the quantity of electrons. A Coulomb contains approximately 6.24 × 1018 electrons. A Coulomb is defined as: “The quantity of electric charge transported in 1 second by a current of 1 ampere.” – The International System of Units C = A⋅s The symbol for the Coulomb is the upper case letter C. It is derived from the basic SI units of ampere and second. Ampere The ampere (often shortened to amp) is the measure of the flow of electrons. Just as litres per second or gallons per second is used to measure the flow of … Read entire article »