1. The problem statement, all variables and given/known data The question I have been set is "Calculate the current in a diode when the forward voltage is 0.62V and the reverse saturation current is 10pa." 2. Relevant equations I really have no idea how to begin solving this one. The only equation that I have been taught (aside from Ohm's Law) is 'the Ideal Diode Equation' - "I= Is [e qv/kt - 1]". However, I do not know what the 'e' in this equation represents and so do not know how to feed the numbers into the equation. 3. The attempt at a solution As above, I'm completely confused here. Many thanks for your time and replies!