Bipolar Junction Transistors MCQ’s

Read Time:2 Minute, 41 Second

This set of Mechatronics Multiple Choice Questions & Answers (MCQs) focuses on “Bipolar Junction Transistors”.

1. What happens to the collector current if the emitter current increases while no base voltage is applied?
a) Increases
b) Decreases
c) No current
d) First increases then decreases

2. Which terminal of the diode is common to the other two terminals of the diode?
a) Base is common to collector and emitter
b) Emitter is common to collector and base
c) Collector is common to base and emitter
d) No terminal is common to any other

3. A bipolar junction transistor has beta=250 and base current=10micro ampere. What is the collector current?
a) 25 micro ampere
b) 10 micro ampere
c) 2.5 milli ampere
d) 10 milli ampere

4. Which is an example of bipolar junction transistor?
a) BC547B
b) CMCP793V-500
c) SLB700A/06VA
d) MBR5H100MFST1G

5. Three PN junctions is present in a bipolar junction transistor.
a) True
b) False

6. When bipolar junction transistor acts as an amplifier?
a) When base emitter terminal is forward biased and base collector terminal is reverse bias
b) When base emitter terminal is reverse biased and base collector terminal is reverse bias
c) When base emitter terminal is reverse biased and base collector terminal is forward bias
d) When base emitter terminal is forward biased and base collector terminal is forward bias

7. In bipolar junction transistors both electron and holes are responsible for conduction.
a) True
b) False

8. What is the minimum voltage required to make base emitter junction of a real silicon bipolar junction transistor in forward biased?
a) 0.7 volts
b) 1.8 volts
c) 2.3 volts
d) 0.3 volts

9. What are the parameters over which transfer characteristics curve of bipolar junction transistor is made in common emitter configuration?
a) Emitter Current and time
b) Emitter Voltage and time
c) Collector Current and frequency
d) Collector to Emitter Voltage and Collector current

10. A bipolar junction transistor has beta=100 and base current= 8 micro ampere. What is the collector current?
a) 25 micro ampere
b) 0.8 micro ampere
c) 0.8 milli ampere
d) 10 milli ampere

11. A bipolar junction transistor has emitter current(Ic)=1.6 milli ampere and collector current=1.47 milli ampere. What is the base current?
a) 25 micro ampere
b) 0.13 microampere
c) 0.8 milli ampere
d) 0.13 milli ampere

12. What are the parameters over which Input characteristics curve of bipolar junction transistor is made in common emitter configuration?
a) Emitter Current and time
b) Emitter to base Voltage and time
c) Collector Current and frequency
d) Base to Emitter Voltage and base current

13. A bipolar junction transistor has collector current(Ic)=1.3 milli ampere and emitter current=1.5 milli ampere. What is the base current?
a) 25 micro ampere
b) 0.2 micro ampere
c) 0.2 milli ampere
d) 10 milli ampere

14. What is the value of current gain (α) where emitter current(Ic)=1.6 milli ampere; collector current=1.5 milli ampere and base current=0.1 milli ampere?
a) 3.1
b) 0.937
c) 0.8
d) 0.31

15. What is the value of current gain (α) where emitter current(Ic)=2 milli ampere; collector current=1.9 milli ampere and base current=0.1 milli ampere?
a) 1.5
b) 0.937
c) 80
d) 150

Happy
Happy
0 %
Sad
Sad
0 %
Excited
Excited
0 %
Sleepy
Sleepy
0 %
Angry
Angry
0 %
Surprise
Surprise
0 %

Average Rating

5 Star
0%
4 Star
0%
3 Star
0%
2 Star
0%
1 Star
0%

Leave a Reply

Your email address will not be published. Required fields are marked *

Previous post PN Junction Diode MCQ’s
Next post Field Effect Transistor MCQ’s