Transistor MCQs for NEET 2020


NEET  Physics is the scoring paper in the medical entrance examination. Here, you will discover the NEET Physics MCQ Questions for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Physics objective questions on air pollution and improve your subject knowledge & problem-solving skills along with time management. NEET Physics Transistor Multiple Choice Questions make you feel confident in answering the question in the exam & increases your scores to high.

MCQs on Transistor

1. The base of a transistor is …………. doped
(a) Moderately
(b) Lightly
(c) Heavily
(d) None of the above


Answer: (b) Lightly

2. How many depletion layers are there in a transistor
(a) Four
(b) One
(c) Two
(d) Three


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: (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: (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: (b) Low resistance

6. In a transistor the input impedance is
(a) Low
(b) Very high
(c) Almost zero
(d) High


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: (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: (b) Less than 1

9. The output impedance of a transistor is
(a) High
(b) Zero
(c) Low
(d) Very low


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: (a) Decreases

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