The CB Characteristics MCQ’s

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This set of Electronic Devices & Circuits Multiple Choice Questions & Answers (MCQs) focuses on “The CB Characteristics”.

1. The output resistance of CB transistor is given by _________
a) ∆VCB/∆IC
b) ∆VBE/∆IB
c) ∆VBE/∆IC
d) ∆VEB/∆IE

2. Which one of the following depicts the output characteristics for a CB transistor?

electronic-devices-circuits-questions-answers-cb-characteritics-q3

a) 

electronic-devices-circuits-questions-answers-cb-characteritics-q3a

b)

electronic-devices-circuits-questions-answers-cb-characteritics-q3b

c)

electronic-devices-circuits-questions-answers-cb-characteritics-q3c

d)

3. The input resistance in a CB transistor is given by _________
a) ∆VCE/∆IB
b) ∆VBE/∆IB
c) ∆VBE/∆IC
d) ∆VEB/∆IE

4. The input characteristics of a CE transistor is_________

electronic-devices-circuits-questions-answers-cb-characteritics-q4

a)

electronic-devices-circuits-questions-answers-cb-characteritics-q4a

b)

electronic-devices-circuits-questions-answers-cb-characteritics-q4b

c) 

electronic-devices-circuits-questions-answers-cb-characteritics-q4c

d) 

5. When the collector junction is reverse biased and emitter junction is forward biased, the operating region of the transistor is called_________
a) inverted region
b) active region
c) cut off region
d) cut in region

6. The input of a CB transistor is given between_________
a) collector and emitter terminals
b) base ad collector terminals
c) ground and emitter terminals
d) emitter and base terminals

7. A transistor is connected in CB configuration. The emitter voltage is changed by 200mV, the emitter by 5mA. During this transition the collector base voltage is kept constant. What is the input dynamic resistance?
a) 30Ω
b) 60Ω
c) 40Ω
d) 50Ω

8. Which of the following corresponds to the output circuit of a CB transistor?
a) VBE
b) IB
c) VCB
d) VCE

9. The current gain of the CB transistor is_________
a) less than or equal to unity
b) equal to unity
c) greater than unity
d) remains same

10. The input characteristics of a CB transistor resembles_________
a) Forward biased diode
b) Illuminated photo diode
c) LED
d) Zener diode

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