1. When a diode is forward biased, the voltage across it is directly proportional to the current A. is inversely proportional to the current is directly proportional to the source voltage remains approximately the same B. C. D. 2. The diode schematic arrow points to the: A. trivalent-doped material B. C. D. B. C. D. positive axial lead anode lead cathode lead 3. What is an energy gap? A. TP uv... the space between two orbital shells the energy equal to the energy acquired by an electron passing a 1 V electric field the energy band in which electrons can move freely an energy level at which an electron can exist 4