Unit kAs kiloampere-second Electric Charge In the field of electric charge, the unit kAs (kiloampere-second) represents a measure of the quantity of electric charge accumulated or transferred over time. This unit combines two other units: the kiloampere (kA) representing electric current, and the second (s) representing the time duration for which the current flows. A kiloampere is a unit of electric current equal to 1,000 amperes (A). An ampere defines the amount of electrical charge passing a given point per unit of time. When an electrical current of 1 kA (1,000 A) flows for 1 second, it is equal to 1 kiloampere-second (kAs) in terms of electric charge. In more general terms, electric charge (Q) can be calculated using the formula: Q = I × t where Q represents electric charge in coulombs (C), I represents the electric current in amperes (A), and t represents the time in seconds (s). Since 1 ampere-second (As) is equal to 1 coulomb (C), 1 kAs would equal 1,000 coulombs (C). Thus, 1 kAs represents a transfer or accumulation of 1,000 coulombs of electric charge during a specific time interval.