Question: A designer requires a shunt regulator of approximately 20 V. Two kinds of Zener diodes are available: 6.8-V devices with rz of 10 ? and 5.1-V devices with rz of 30 ?. For the two major choices possible, find the load regulation. In this calculation neglect the effect of the regulator resistance R.
Options
A : -30mV/mA and 120mV/mA respectively
B : 30mV/mA and 60mV/mA respectively
C : -60mV/mA and +60mV/mA respectively
D : -30mV/mA and -120mV/mA respectively
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