The current–voltage characteristic curve for a semiconductor diode as a function of temperature T is given by the equation I = I0 (ee∆/kBT – 1) Here the first symbol e represents Euler’s number, the base of natural logarithms. The second e is the charge on the electron. The kB stands for Boltzmann’s constant, and T is the absolute temperature. Set up a spreadsheet to calculate I and R = ∆V/I for ∆V = 0.400 V to 0.600 V in increments of 0.005 V. Assume I0 = 1.00 nA. Plot R versus ∆V for T = 280 K, 300 K, and 320 K.