Transistors(Electrical Engineering Questions ) Questions and Answers

Question 1. IC = [a / (1 – a )] IB +_____________?
  1.    ICEO
  2.    ICBO
  3.    IC
  4.    (1 – a ) IB
Explanation:-
Answer: Option A. -> ICEO
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 2. IC = aIE +____________?
  1.    IB
  2.    ICEO
  3.    ICBO
  4.    ßIB
Explanation:-
Answer: Option C. -> ICBO
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3. The output impedance of a transistor connected in_____________arrangement is the highest?
  1.    common emitter
  2.    common collector
  3.    common base
  4.    none of the above
Explanation:-
Answer: Option C. -> common base
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 4. IC = ß IB +__________?
  1.    ICBO
  2.    IC
  3.    ICEO
  4.    aIE
Explanation:-
Answer: Option C. -> ICEO
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 5. In a pnp transistor, the current carriers are______________?
  1.    acceptor ions
  2.    donor ions
  3.    free electrons
  4.    holes
Explanation:-
Answer: Option D. -> holes
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 6. The input impedance of a transistor is___________?
  1.    high
  2.    low
  3.    very high
  4.    almost zero
Explanation:-
Answer: Option B. -> low
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 7. The collector of a transistor is____________doped?
  1.    heavily
  2.    moderately
  3.    lightly
  4.    none of the above
Explanation:-
Answer: Option B. -> moderately
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 8. In a npn transistor,_____________are the minority carriers?
  1.    free electrons
  2.    holes
  3.    donor ions
  4.    acceptor ions
Explanation:-
Answer: Option B. -> holes
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 9. The value of a of a transistor is_____________?
  1.    more than 1
  2.    less than 1
  3.    1
  4.    none of the above
Explanation:-
Answer: Option B. -> less than 1
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 10. In a tansistor, IC = 100 mA and IE = 100.2 mA. The value of ß is____________?
  1.    100
  2.    50
  3.    about 1
  4.    200
Explanation:-
Answer: Option D. -> 200
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
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