1. Draw the schematic diagram of a zener regulator with a supply voltage of 20 V, a series resistance of 330 ?, a zener voltage of 12 V, and a load resistance of 1 k ?. What are the load voltage and the zener current?
2. The zener diode of Fig. 5-44 has a zener resistance of 14 ?. If the power supply has a ripple of 1 Vp-p, what is the ripple across the load resistor?
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