The abvolt (symbolized abV) is the unit of electromotive force (EMF) or potential difference in the cgs (centimeter/gram/second) electromagnetic system of units. When an EMF of 1 abV exists between two points, then one erg of energy is needed to move one abcoulomb (1 abC) of charge carriers between those two points. A potential difference of 1 abV will drive a current of one abampere (1 abA) through a resistance of one abohm (ab W). Ohm's Law applies for the cgs electromagnetic units, just as it does for the units in the International System of Units (SI). That is: E = IR where E is the EMF in abvolts, I is the current in abamperes, and R is the resistance in abohms. The abvolt is a tiny unit of EMF, equal to 10 - 8volts (V). In most practical applications, the volt, which is the unit of potential difference in SI, is preferred. Also See: Voltage,cgs or Small-Unit Metric System, and International Systems of Units (SI)