The Junction Transistor MCQ’s

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

1. What is the left hand section of a junction transistor called?
a) base
b) collector
c) emitter
d) depletion region

2. In an NPN transistor, the arrow is pointed towards_________
a) the collector
b) the base
c) depends on the configuration
d) the emitter

3. The advantages over the vacuum triode for a junction transistor is_________
a) high power consumption
b) high efficiency
c) large size
d) less doping

4. Which of the following is true in construction of a transistor?
a) the collector dissipates lesser power
b) the emitter supplies minority carriers
c) the collector is made physically larger than the emitter region
d) the collector collects minority charge carriers

5. Which of the following are true for a PNP transistor?
a) the emitter current is less than the collector current
b) the collector current is less than the emitter current
c) the electrons are majority charge carriers
d) the holes are the minority charge carriers

6. When does the transistor act like an open switch?
a) cut off region
b) inverted region
c) saturated region
d) active region

7. In the operation of an NPN transistor, the electrons cross which region?
a) emitter region
b) the region where there is high depletion
c) the region where there is low depletion
d) P type base region

8. In the saturated region, the transistor acts like a_________
a) poor transistor
b) amplifier
c) open switch
d) closed switch

9. If the emitter-base junction is forward biased and the collector-base junction is reverse biased, what will be the region of operation for a transistor?
a) cut off region
b) saturated region
c) inverted region
d) active region

10. The transfer of a signal in a transistor is_________
a) low to high resistance
b) high to low resistance
c) collector to base junction
d) emitter to base junction

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