In the circuit below Vin = 4V, R = 2K and VB = 2V. In these conditions the voltage across diode V is _________ (Use constant voltage drop model assumption and take VD = 0.5V)(a) 2.5(b) 4.5(c) 0.5(d) 1.5The question was posed to me during an internship interview.Origin of the question is Constant Voltage Drop Model-2 topic in portion Diode Circuit of Analog Circuits

In the circuit below Vin = 4V, R = 2K and VB = 2V. In these conditions

1.	In the circuit below Vin = 4V, R = 2K and VB = 2V. In these conditions the voltage across diode V is _________ (Use constant voltage drop model assumption and take VD = 0.5V)(a) 2.5(b) 4.5(c) 0.5(d) 1.5The question was posed to me during an internship interview.Origin of the question is Constant Voltage Drop Model-2 topic in portion Diode Circuit of Analog Circuits
Answer» Right option is (C) 0.5 For explanation: In constant voltage drop MODEL at forward bias diode can be REPLACED as a CELL and in reverse bias diode can be avoided by CONSIDERING the terminals are open. Since diode is forward biased it will produce a voltage drop of VD.

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