(H) Theef="module.php?name=Lexikon&file=search&eid=1&query=SI">SI unit of inductance: one henry is the inductance of a closed loop in which the induced voltage is one volt if the current flowing through it changes by one ampereeach second, i.e., 1 H = 1 Vs/A. Named after the American physicist Joseph Henry (1797-1878). (1997-03-16)