Refer to NEET Physics Semiconductor and P N Junction Diode MCQs Set A provided below. NEET Full Syllabus Physics MCQs with answers available in Pdf for free download. The MCQ Questions for Full Syllabus Physics with answers have been prepared as per the latest syllabus, NEET books and examination pattern suggested in Full Syllabus by NEET, NCERT and KVS. Multiple Choice Questions for Semiconductor and P N Junction Diode are an important part of exams for Full Syllabus Physics and if practiced properly can help you to get higher marks. Refer to more Chapter-wise MCQs for NEET Full Syllabus Physics and also download more latest study material for all subjects
MCQ for Full Syllabus Physics Semiconductor and P N Junction Diode
Full Syllabus Physics students should refer to the following multiple-choice questions with answers for Semiconductor and P N Junction Diode in Full Syllabus. These MCQ questions with answers for Full Syllabus Physics will come in exams and help you to score good marks
Semiconductor and P N Junction Diode MCQ Questions Full Syllabus Physics with Answers
Question: In a semiconductor
a) there are no free electrons at 0 K
b) there are no free electrons at any temperature
c) the number of free electrons increases with pressure
d) the number of fre electrons is more than that in a conductor
Answer: there are no free electrons at 0 K
Question: The electrical conductivity of pure germanium can be increased by
a) All of the above
b) doping donor impurities
c) doping acceptor impurities
d) increasing the temperature
Answer: All of the above
Question: The resistivity of a semiconductor at room temperature is inbetween
a)
b)
c) Both
d) None of these
Answer:
Question: Electric conduction in a semiconductor takes place due to
a) both electrons and holes
b) neither electrons nor holes
c) holes only
d) electrons only
Answer: both electrons and holes
Question: A p-type semiconductor is
a) uncharged
b) uncharged at 0K but charged at higher temperatures
c) positively charged
d) negatively charged
Answer: uncharged
Question: The impurity atoms with which pure silicon may be doped to make it a p-type semiconductor are those of
a) boron
b) nitrogen
c) phosphorus
d) antimony
Answer: boron
Question: When an impurity is doped into an intrinsic semiconductor, the conductivity of the semiconductor
a) remains the same
b) decreases
c) increases
d) becomes zero
Answer: remains the same
Question: The ratio of forward biased to reverse biased resistance for pn junction diode is
a) 10–1 : 1
b) 10–2 : 1
c) 10–4 : 1
d) None of these
Answer: 10–1 : 1
Question: A strip of copper and another of germanium are cooled from room temperature to 80K. The resistance of
a) copper strip decreases and that of germanium increases
b) each of these increases
c) copper strip increases and that of germanium decreases
d) each of these decreases
Answer: copper strip decreases and that of germanium increases
More Questions.....................................
Question: The drift current in a p-n junction is from the
a) n-side to the p-side
b) p-side to the n-side
c) n-side to the p-side if the junction is forward-biased and in the opposite direction if it is reverse biased
d) p-side to the n-side if the junction is forward-biased and in the opposite direction if it is reverse-biased
Answer: n-side to the p-side
Question: If a small amount of antimony is added to germanium crystal
a) there will be more free electrons than holes in the semiconductor
b) its resistance is increased
c) the antimony becomes an acceptor atom
d) it becomes a p–type semiconductor
Answer: there will be more free electrons than holes in the semiconductor
Question: The relation between number of free electrons (n) in a semiconductor and temperature (T) is given by
a)
b)
c) Both
d) None of these
Answer:
Question: If the two ends of a p-n junction are joined by a wire
a) there will not be a steady current in the circuit
b) there will be a steady current from the n-side to the p-side
c) there will be a steady current from the p-side to the n-side
d) there may or may not be a current depending upon the resistance of the connecting wire
Answer: there will not be a steady current in the circuit
Question: In the half wave rectifier circuit operating from 50 Hz mains frequency, the fundamental frequency in the ripple would be
a) 50 Hz
b) 70.7 Hz
c) 100 Hz
d) 25 Hz
Answer: 50 Hz
Question: A half-wave rectifier is being used to rectify an alternating voltage of frequency 50 Hz. The number of pulses of rectified current obtained in one second is
a) 25
b) 100
c) 2000
d) 50
Answer: 25
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NEET Full Syllabus Physics Semiconductor and P N Junction Diode MCQs
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MCQs for Physics NEET Full Syllabus Semiconductor and P N Junction Diode
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Semiconductor and P N Junction Diode MCQs Physics NEET Full Syllabus
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Semiconductor and P N Junction Diode NEET Full Syllabus MCQs Physics
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NEET MCQs Physics Full Syllabus Semiconductor and P N Junction Diode
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