# Piecewise Linear Model of Diode-1 MCQ’s

This set of Analog Electronic Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Piecewise Linear Model of Diode-1″.

1. Voltage drop produced by a diode in piecewise linear mode is __________
a) Constant and equal to knee voltage
b) Varies linearly with voltage after knee voltage
c) Varies exponentially with voltage after knee voltage
d) Constant and equal to twice of knee voltage

2. After cut-in voltage in piecewise linear model diode act as a ___________
a) Resistor
b) Capacitor
c) Conductor
d) Insulator

3. In the given circuit voltage V = 2V.cut-in voltage of diode is 0.7V. Forward resistance is 10Ω. The current I through the circuit is ____________
(Assume piecewise linear model for diode)

a) 0.235mA
b) 1.29mA
c) 1.63mA
d) 2.27mA

4. In the given circuit input voltage Vin is 3V and V2 is 1V. The resistance R1 is 1.5K. Cut-in voltage of diode is 0.5V. Forward bias resistance is 10Ω. The current I will be __________

a) 2.03mA
b) 0.23mA
c) 1.58mA
d) 1.33mA

5. Reverse biased condition of a diode in piecewise linear model is equivalent to __________
a) Resistor
b) Capacitor
c) Conductor
d) Insulator

6. In the given circuit input voltage V1 is -3V and V2 is -1V. The resistance R1 is 1K. Cut-in voltage of diode is 0.5V. Forward bias resistance is 10Ω. The approximate current I is _________
(Use piecewise linear model of diode)

a) -1mA
b) -2mA
c) -0.2mA
d) -0.1mA

7. In the given circuit input voltage V is 3V and VB is 1V. The resistance R1 and R2 is 1K. Cut-in voltage of diode is 0.5V. Forward bias resistance is 10Ω. The current I will be
(Use piecewise linear model of diode)

a) 0.96mA
b) 2.13mA
c) 1.56mA
d) 1.23ma

8. In the given circuit input voltage V is -3V and VB is 1V. The resistance R1 and R2 is 1K. Cut-in voltage of diode is 0.5V. Forward bias resistance is 10Ω. The current I will be
(Use piecewise linear model of diode)

a) 1.2mA
b) 0mA
c) 0.8mA
d) 1mA

9. In the given circuit input voltage V is 2V and VB is 1V. The resistance R1 and R2 is 1K. Cut-in voltage of diode is 0.5V. Forward bias resistance is 10Ω. The current I will be
(Use piecewise linear model of diode)

a) 0.29mA
b) 0.21mA
c) 0.36mA
d) 0.15mA

10. In the given circuit input voltage Vin is 3V and VB is 1V. The resistance R is 1K. Cut-in voltage of diode is 0.5V. Forward bias resistance is 10Ω. The current I will be? (Use piecewise linear model of diode)

a) 1V
b) 3V
c) 2.3V
d) 1.3V