Calculate the power dissipated in r and in the diode, Electrical Engineering

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Q. Consider the circuit of Figure with VS = 94 V, VZ = 12 V, R = 820 , RL = 220 , RS = 0, and RZ = 25 . Assume the reverse saturation current of the zener diode to be zero.

(a) Find the load voltage, current, and power.

(b) Calculate the power dissipated in R and in the diode.

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