1. The transfer characteristics of a diode relates to: a. The diode current and the input voltage b. The diode current and the output voltage c. The output voltage and the input voltage d. None of the above 2. A Zener diode: a. Has a high forward voltage rating b. Is useful as an amplifier c. Has a sharp breakdown at low reverse voltage d. None of the above

3. Which of these is a best description of a Zener diode?a. It operates in the reverse regionb. It is a constant voltage devicec. It is a constant current deviced. None of the above

4. When two Zener diodes each of 10 V and 15 V are connected in series, then the overall voltage between them when they are in conduction is a. 10 V b. 25 V c. 15 V d. Zero