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The voltage across the diode Vout if Vin is 5V and resistance is 10K is? (Use constant voltage drop model of diode and take VD as 0.5V)(a) 5V(b) 0.5V(c) 2.5V(d) 0VThis question was posed to me in examination.Question is from Constant Voltage Drop Model-1 topic in portion Diode Circuit of Analog Circuits

Answer» CORRECT answer is (b) 0.5V

Easy 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 and potential is greater than VD voltage across diode is VD.


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