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In the circuit shown below voltage Vin is 3V and VB is 2V. The resistor R is 1K. Cut-in voltage of diode is 0.7V. The voltage V is __________

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In the circuit shown below voltage Vin is 3V and VB is 2V. The resistor R is 1K. Cut-in voltage of diode is 0.7V. The voltage V is __________

(a) 0.3V

(b) 1V

(c) 3V

(d) 0V

I got this question in an international level competition.

I'm obligated to ask this question of Piecewise Linear Model of Diode-2 in section Diode Circuit of Analog Circuits

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Best answer
The correct option is (d) 0V

The best explanation: In piecewise linear model, we can consider diode as a voltage source of 0.7V along with an ideal diode. VIN being applied is 3V, which is greater than 2-0.7 V, and hence the diode is reverse biased and considering it open, no output is obtained.

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