Consider the voltage reference circuit in Figure P9.86. Using a Zener diode with a breakdown voltage of \(5.6 \mathrm{~V}\), design the circuit to produce an output voltage of \(12.0 \mathrm{~V}\). Assume the input voltage is \(15 \mathrm{~V}\) and the Zener diode current is \(I_{Z}=2 \mathrm{~mA}\).

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