They are Voltage (V) or (E), measured in Volts, Current or Amperage (I), measured in Amps (Amperes), and Resistance (R) measured in Ohms. The third factor will be calculated for you when you click on the Calculate button for that table. Ohm's Law is V = I x R where V = Voltage, I = Current and R = Resistance. One ohm is the resistance value through which one volt will maintain a current of one ampere.
KJV Dictionary Definition: leek leek. LEEK, n. A plant of the genus Allium, with a bulbous root. Numb. 11.
Leech : A leech is a client who is downloading the file from the network. In some cases leech is the term used for clients with a negative impact on the system i.e. the ones who download the files but avoid having them as a seed ,thus affecting the over all share-ratio. Torrent Terminology - A Detailed List of Terms Used in Torrents