A circuit with Si and Ge diodes is shown in the accompanying figure. The barrier potential for Silicon is V_ Si =0.7 ~V and that of Germanium is V_ Ge =0.3 ~V . If the input voltage is 20 V , then the voltage V_A measured across the resista

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A circuit with Si and Ge diodes is shown in the accompanying figure. The barrier potential for Silicon is V_ Si =0.7 ~V and that of Germanium is V_ Ge =0.3 ~V . If the input voltage is 20 V , then the voltage V_A measured across the resistance R_L=1 k is

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Correct answer: A. 19.7 V

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A circuit with Si and Ge diodes is shown in the accompanying figure. The barrier potential for Silicon is V_ Si =0.7 ~V and that of Germanium is V_ Ge =0.3 ~V . If the input voltage is 20 V , then the voltage V_A measured across the resistance R_L=1 k is

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