A) Determine VL, IL, IZ, and IR for the network of Fig. 2.181 if RL = 180

B. Repeat part an if RL = 470 H.

C. Determine the minimum value of RL, to ensure that the Zener diode is in the "on" state.

Rs 2202 IR Vz = 10 V Pz 20 V VL = 400 mW max