1. The problem statement, all variables and given/known data "The low [electron] density of a semiconductor means that the conduction electrons travel much faster than they do in conductors." In order to fully understand this, I feel that I need to know why this occurs. 2. Relevant equations I = nAve Where: I = current n = electron density v = average drift velocity e = charge on one electron 3. The attempt at a solution I know that, mathematically, the electrons need to travel faster in order for the current to be maintained, since current is flow of charge per unit time. I understand from the equation why this is the case, and the numbers make sense. However, I can't understand why the electrons would move faster just because there are fewer of them, and why the current doesn't just fall when a semiconductor is inserted into a circuit.