In the circuit Vin = 4V, VB = 3V, R = 5K. The voltage across diode V is __________(a) 1V(b) 4V(c) 3V(d) 7VI got this question during an interview for a job.The doubt is from Ideal Diode Model topic in division Diode Circuit of Analog Circuits

In the circuit Vin = 4V, VB = 3V, R = 5K. The voltage across diode V i

1.	In the circuit Vin = 4V, VB = 3V, R = 5K. The voltage across diode V is __________(a) 1V(b) 4V(c) 3V(d) 7VI got this question during an interview for a job.The doubt is from Ideal Diode Model topic in division Diode Circuit of Analog Circuits
Answer» CORRECT option is (a) 1V The EXPLANATION is: 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 VIN reverse BIASES the diode and VB forward biases the diode So total voltage across diode is Vin-VB.

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