300+ TOP MCQs on Transistor and Answers

NEET  Physics is the very imporatant paper in the Medical Entrance EXAM. So these NEET Physics MCQs and Answers for all Concepts as per the new syllabus. Practice daily with these NEET Physics objective questions on air pollution . NEET Physics Transistor Multiple Choice Questions

MCQs on Transistor :

1. The base of a transistor is …………. doped
(A) Moderately
(B) Lightly
(C) Heavily
(D) None of the above

Answer

Answer: (B) Lightly

2. How many depletion layers are there in a transistor
(A) Four
(B) One
(C) Two
(D) Three

Answer

Answer: (C) Two

3. A transistor has
(A) Two p-n junctions
(B) One p-n junction
(C) Three p-n junctions
(D) Four p-n junctions

Answer

Answer: (A) Two p-n junctions

4. The current carries in a PNP transistor is
(A) Free electrons
(B) Acceptor ions
(C) Donor ions
(D) Holes

Answer

Answer: (D) Holes

5. The base-emitter junctions of a transistor is 
(A) a wide depletion layer
(B) Low resistance
(C) a reverse bias
(D) None

Answer

Answer: (B) Low resistance

6. In a transistor the input impedance is
(A) Low
(B) Very high
(C) Almost zero
(D) High

Answer

Answer: (A) Low

7. The majority of the carriers from the emitter
(A) Recombine in the emitter
(B) Pass through the base of the collector
(C) Recombine in the base
(D) None of the above

Answer

Answer: (B) Pass through the base of the collector

8. The value of α of a transistor is
(A) More than 1
(B) Less than 1
(C) 1
(D) None of the above

Answer

Answer: (B) Less than 1

9. The output impedance of a transistor is
(A) High
(B) Zero
(C) Low
(D) Very low

Answer

Answer: (A) High

10. As the temperature of a transistor goes up, the base-emitter resistance
(A) Decreases
(B) Increases
(C) Remains the same
(D) None of the above

Answer

Answer: (A) Decreases