Ꮕ +9 VIN 8 V R w 22 Ω 1N4733A RL pho 12. A loaded zener regulator is shown in Figure 3-76. Vz = 5.1 V at Iz = 49 mA, Izk = 1 mA, Zz=70, and IzM = 70 mA. Determine the minimum and maximum permissible load currents.