Junction Transistor(General Knowledge > General Science ) Questions and Answers

Question 1. What are the 3 legs of a transistor called?
  1.    Base, Electrode, Commiter
  2.    Bridge, Collector, Extruder
  3.    Base, Collector, Emitter
  4.    Brake, Collection, Emit
Explanation:-
Answer: Option C. -> Base, Collector, Emitter

Question 2. To operate properly, a transistor's base-emitter junction must be forward biased with reverse bias applied to which junction?
  1.    collector-emitter
  2.    base-collector
  3.    base-emitter
  4.    collector-base
Explanation:-
Answer: Option D. -> collector-base

Question 3. Depletion region behaves as
  1.    Semiconductor
  2.    insulator
  3.    conductor
  4.    High resistance
Explanation:-
Answer: Option B. -> insulator

Question 4. At the base-emitter junctions of a transistor, one finds
  1.    a reverse bias
  2.    a wide depletion layer
  3.    low resistance
  4.    none of the above
Explanation:-
Answer: Option C. -> low resistance

Question 5. The ratio of dc collector current (IC) to dc emitter current (IE)
  1.    gamma
  2.    theta
  3.    beta
  4.    alpha
Explanation:-
Answer: Option D. -> alpha

Question 6. The region of operation of a transistor where base-emitter junction has a low resistance due to forward bias and the base-collector junction has a high resistance due to reverse bias
  1.    cutoff
  2.    saturation
  3.    breakdown
  4.    active or linear
Explanation:-
Answer: Option D. -> active or linear

Question 7. Which is beta's current ratio?
  1.    IC/IB
  2.    IC/IE
  3.    IB/IE
  4.    IE/IB
Explanation:-
Answer: Option A. -> IC/IB

Question 8. When the transistor is in cutoff, VCE is
  1.    o V
  2.    equal to VBE
  3.    minimum
  4.    equal to VCC
Explanation:-
Answer: Option D. -> equal to VCC

Question 9. Most of the electrons in the base of an NPN transistor flow:
  1.    out of the base lead
  2.    into the collector
  3.    into the emitter
  4.    into the base supply
Explanation:-
Answer: Option B. -> into the collector

Question 10. When transistors are used in digital circuits they usually operate in the:
  1.    active region
  2.    breakdown region
  3.    saturation and cutoff regions
  4.    linear region
Explanation:-
Answer: Option C. -> saturation and cutoff regions