# Diode Approximations and Series Connection MCQ’s

This set of Analog Electronic Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Diode Approximations and Series Connection”.

1. Which of the following models of a semiconductor diode is the most widely used for the purpose of calculation?
a) Approximate Equivalent Model
b) Ideal Diode Model
c) Piecewise Linear Model
d) Hybrid model

2. From the given circuit diagram, considering the diode to be a silicon semiconductor diode, what is the magnitude of diode current? (Use an appropriate model of the diode)

a) 43 mA
b) 0 mA
c) 4.3 mA
d) 5 mA

3. From the given circuit diagram, what is the value of diode current?

a) 8 mA
b) 0 mA
c) 7.3 mA
d) 7 mA

4. Which of the following statement holds true?
Statement-1: Piecewise linear model is generally not used for diode analysis.
Statement-2: The value of Rav is negligible as compared to the load resistance.
a) Statement-1 is true, Statement-2 is true and Statement-2 is a proper explanation for Statement-1
b) Statement-1 is true, Statement-2 is true and Statement-2 is not a proper explanation for Statement-1
c) Statement-1 is true, Statement-2 is false
d) Statement-1 is false, Statement-2 is true

5. From the given circuit diagram, what is the value of diode current?

a) 8 mA
b) 7.3 mA
c) 0 mA
d) 7 mA

6. From the given circuit diagram, what is the value of diode current? Use an appropriate diode model.

a) 8 mA
b) 0 mA
c) 7.3 mA
d) 7 mA

7. From the given circuit diagram, what is the value of voltage across R2?

a) 9.324 V
b) 5.3 V
c) 0 V
d) 5.8125 V

8. From the given circuit diagram, what is the value of voltage across the resistor?

a) 2 V
b) 1.3 V
c) 1 V
d) 0 V

9. From the given circuit diagram, what is the value of diode current?

a) 2.425 mA
b) 5.2 mA
c) 2.325 mA
d) 0 mA

10. From the given circuit diagram, what is the value of diode current?

a) 2 mA
b) 0 mA
c) 1.3 mA
d) 1 mA

11. From the given circuit diagram, what is the value of diode current?

a) 2.425 mA
b) 5.2 mA
c) 2.325 mA
d) 0 mA

12. From the given circuit diagram, what is the voltage across diode?

a) 10 V
b) 5 V
c) 0.7 V
d) 0 V