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What will be the voltage Vout if VA = 3V and VB = -5V and the diodes are ideal?

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What will be the voltage Vout if VA = 3V and VB = -5V and the diodes are ideal?

(a) 5V

(b) 3V

(c) 2V

(d) 0V

The question was posed to me in unit test.

My doubt stems from Ideal Diode Model-1 in chapter Diode Circuit of Analog Circuits

1 Answer

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Best answer
Correct choice is (b) 3V

To explain: In ideal diode model the diode is considered as a perfect conductor in forward bias and perfect insulator in reverse bias. That is voltage drop at forward bias is zero and current through the diode at reverse bias is zero. Since first diode is in forward bias and second diode is in reverse bias. So Only first diode will pass the current.

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