The figure shows a Zener diode with breakdown voltage $40 V$ connected to a $100 V$ DC source through series resistance $R_{s} = 4 kΩ$ , with load resistance $R_{L} = 8 kΩ$ . Find the output voltage across $R_{L}$ .

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TestHub · Accepted Answer

Without the Zener: V L ​ = 100 4 + 8 8 ​ = 66.7 V This exceeds breakdown, so the Zener regulates. V L ​ = V Z ​ = 40 V

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