# BJT Configuration MCQ’s

This set of Analog Electronic Circuits Multiple Choice Questions & Answers (MCQs) focuses on “BJT Configuration”.

1. For a BJT, for common base configuration the output characteristics are represented by a plot between which of the following parameters?
a) VBE and IB
b) VCE and IC
c) VCB and IC
d) VCE and IB

2. In a BJT, if the collector-base junction is reverse-biased and the base-emitter junction is forward-biased, which region is the BJT operating in?
a) Saturation region
b) Active region
c) Cutoff region
d) Reverse active region

3. For a BJT, for common base configuration the input characteristics are represented by a plot between which of the following parameters?
a) VBE and IE
b) VBE and IB
c) VCE and IC
d) VCC and IC

4. In a BJT, if the collector-base junction is forward-biased and the base-emitter junction is forward-biased, which region is the BJT operating in?
a) Saturation region
b) Active region
c) Cutoff region
d) Reverse active region

5. From the given characteristics, what is the approximate value of IC at IB=30 uA and VCE=10 V?

a) 3 mA
b) 3.4 mA
c) 0 mA
d) 2 mA

6. Which of the following correctly determines the relation between α and β?
a) β=α/(1-α)
b) α=β/(1-α)
c) β=α/(1-β)
d) β=α*(1-β)

7. In a BJT, if the collector-base junction and the base-emitter junction are both reverse-biased, which region is the BJT operating in?
a) Saturation region
b) Active region
c) Cutoff region
d) Reverse active region

8. From the given characteristics, what is the approximate value of IC at VBE=0.7 V and VCE=15 V?

a) 3.4 mA
b) 0 mA
c) 2.5 mA
d) 10 mA

9. The value of IC is precisely zero when the value of IE is zero.
a) True
b) False

10. For common emitter configuration, which of the following is the correct relation?
a) IC < IE
b) IC = βIB
c) IC = αIE
d) IC = IE