Assume a Zener diode used in the regulator circuit has the following VZT=10 V @ IZT=24 mA; IZK=2 mA; IZM=80 mA and the unregulated input source Vin=20 V. Using the given data, a- Draw the Zener characteristic curve clearly showing the parameters given above. b- Determine the minimum value for RS (RS,min) necessary to keep the Zener current limited to a value below IZM. Hint: Let VZ = VZT