Electric current
Electric current : Electric current is the flow of electric charge (usually electrons) through a conductor, measured in Amperes (A) driven by a voltage force, and restricted by resistance. There are two main types: 1.Direct current (DC),flowing one way (batteries), 2.Alternating current (AC), reversing direction. Definition: The rate of flow of electric charge(q), overtime(t) expressed as I=q/t Charge carrier s:electrons in wires ions in, liquids are both in plasma. Resistance: Opposition to flow measured in ohms. Ohms Law :Relates current (I), voltage (v) and resistance R as I=V/R Types of current: Direct current : electrons flow steadily in one direction. Alternat...