Voltage-Ampere Characteristics of Diode-2 MCQ’s

This set of Analog Electronic Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Voltage-Ampere Characteristics of Diode-2″.

1. Which of the following I-V characteristics represents a typical Si diode?

a) 

b) 

c) 

d) 

2. Which of the following graph represents a typical Ge diode?

a) 

b) 

c) 

d) 

3. Which of the following graph represents the I-V characteristics of a real diode?

a) 

b) 

c) 

d) 

4. Which of the following graph represent a zener diode which is voltage rated as “VZ”?

a) 

b)

 c)

 d) 

5. Voltage rating of a Zener diode denotes ____________
a) Reverse breakdown voltage
b) Forward breakdown voltage
c) Voltage at which current is maximum
d) Maximum forward voltage which a diode can withstand

6. Which of the following graph represents I-V characteristics of an ideal diode?

a) 

b) 

c)

 d) 

7. Which of the following statement is false for a zener diode voltage rated as “VZ“?
a) Reverse breakdown occurs at VZ
b) Forward breakdown occurs at VZ
c) Zener diode is a heavily doped diode
d) Usually operates in reverse bias mode

8. Knee current in the case of zener diode implies _____________
a) Forward bias current beyond which I-V characteristics is a straight line
b) Reverse bias current above which I-V characteristics is a straight line
c) Forward cut-in current beyond which current is directly proportional to voltage
d) Maximum allowable reverse bias current through a zener diode

9. Which of the following I-V characteristics represents the constant voltage drop model of diode?

a) 

b)

 c) 

d) 

10. Which of the following statement about a Si diode is true?
a) Cut-in voltage is always higher than the reverse breakdown voltage
b) Reverse saturation current is in the order of mA
c) Cut-in voltage is 1V
d) Reverse scale current is in the order of nA