Electrical Engineering (EE) Exam  >  Electrical Engineering (EE) Questions  >  In germanium semiconductor at T = 300 K, the ... Start Learning for Free
In germanium semiconductor at T = 300 K, the acceptor concentrations is Na = 1013 cm-3 and donor concentration is Nd = 0. The thermal equilibrium concentration p0 is
  • a)
    2.97 x 109 cm-3
  • b)
    2.68 x 1012 cm-3
  • c)
    2.95 x 1013 cm-3
  • d)
    2.4 cm-3
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
In germanium semiconductor at T = 300 K, the acceptor concentrations i...



View all questions of this test
Most Upvoted Answer
In germanium semiconductor at T = 300 K, the acceptor concentrations i...
Given data:
Acceptor concentration, Na = 1013 cm-3
Donor concentration, Nd = 0
Temperature, T = 300 K

Calculation:
1. Intrinsic Carrier Concentration, ni:
ni = sqrt(Nc * Nv) * exp(-Eg/2kT)
where,
Nc = 2.8 × 1019 cm-3 (Effective Density of States in Conduction Band)
Nv = 1.04 × 1019 cm-3 (Effective Density of States in Valence Band)
Eg = 0.67 eV (Energy Bandgap)
k = 8.62 × 10-5 eV/K (Boltzmann Constant)

Substituting the given values, we get:
ni = sqrt(2.8 × 1019 cm-3 × 1.04 × 1019 cm-3) * exp(-0.67 eV/2 × 8.62 × 10-5 eV/K × 300 K)
ni = 2.43 × 1013 cm-3

2. Majority Carrier Concentration, p0:
p0 = ni2 / Na
where,
ni = Intrinsic Carrier Concentration
Na = Acceptor Concentration

Substituting the given values, we get:
p0 = (2.43 × 1013 cm-3)2 / 1013 cm-3
p0 = 2.95 × 1013 cm-3

Therefore, the thermal equilibrium concentration of majority carriers (holes) in germanium semiconductor at T = 300 K is 2.95 × 1013 cm-3, which is option (c).
Explore Courses for Electrical Engineering (EE) exam

Top Courses for Electrical Engineering (EE)

In germanium semiconductor at T = 300 K, the acceptor concentrations is Na = 1013 cm-3 and donor concentration is Nd = 0. The thermal equilibrium concentration p0 isa)2.97 x 109cm-3b)2.68 x 1012cm-3c)2.95 x 1013cm-3d)2.4 cm-3Correct answer is option 'C'. Can you explain this answer?
Question Description
In germanium semiconductor at T = 300 K, the acceptor concentrations is Na = 1013 cm-3 and donor concentration is Nd = 0. The thermal equilibrium concentration p0 isa)2.97 x 109cm-3b)2.68 x 1012cm-3c)2.95 x 1013cm-3d)2.4 cm-3Correct answer is option 'C'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about In germanium semiconductor at T = 300 K, the acceptor concentrations is Na = 1013 cm-3 and donor concentration is Nd = 0. The thermal equilibrium concentration p0 isa)2.97 x 109cm-3b)2.68 x 1012cm-3c)2.95 x 1013cm-3d)2.4 cm-3Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In germanium semiconductor at T = 300 K, the acceptor concentrations is Na = 1013 cm-3 and donor concentration is Nd = 0. The thermal equilibrium concentration p0 isa)2.97 x 109cm-3b)2.68 x 1012cm-3c)2.95 x 1013cm-3d)2.4 cm-3Correct answer is option 'C'. Can you explain this answer?.
Solutions for In germanium semiconductor at T = 300 K, the acceptor concentrations is Na = 1013 cm-3 and donor concentration is Nd = 0. The thermal equilibrium concentration p0 isa)2.97 x 109cm-3b)2.68 x 1012cm-3c)2.95 x 1013cm-3d)2.4 cm-3Correct answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Electrical Engineering (EE). Download more important topics, notes, lectures and mock test series for Electrical Engineering (EE) Exam by signing up for free.
Here you can find the meaning of In germanium semiconductor at T = 300 K, the acceptor concentrations is Na = 1013 cm-3 and donor concentration is Nd = 0. The thermal equilibrium concentration p0 isa)2.97 x 109cm-3b)2.68 x 1012cm-3c)2.95 x 1013cm-3d)2.4 cm-3Correct answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of In germanium semiconductor at T = 300 K, the acceptor concentrations is Na = 1013 cm-3 and donor concentration is Nd = 0. The thermal equilibrium concentration p0 isa)2.97 x 109cm-3b)2.68 x 1012cm-3c)2.95 x 1013cm-3d)2.4 cm-3Correct answer is option 'C'. Can you explain this answer?, a detailed solution for In germanium semiconductor at T = 300 K, the acceptor concentrations is Na = 1013 cm-3 and donor concentration is Nd = 0. The thermal equilibrium concentration p0 isa)2.97 x 109cm-3b)2.68 x 1012cm-3c)2.95 x 1013cm-3d)2.4 cm-3Correct answer is option 'C'. Can you explain this answer? has been provided alongside types of In germanium semiconductor at T = 300 K, the acceptor concentrations is Na = 1013 cm-3 and donor concentration is Nd = 0. The thermal equilibrium concentration p0 isa)2.97 x 109cm-3b)2.68 x 1012cm-3c)2.95 x 1013cm-3d)2.4 cm-3Correct answer is option 'C'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice In germanium semiconductor at T = 300 K, the acceptor concentrations is Na = 1013 cm-3 and donor concentration is Nd = 0. The thermal equilibrium concentration p0 isa)2.97 x 109cm-3b)2.68 x 1012cm-3c)2.95 x 1013cm-3d)2.4 cm-3Correct answer is option 'C'. Can you explain this answer? tests, examples and also practice Electrical Engineering (EE) tests.
Explore Courses for Electrical Engineering (EE) exam

Top Courses for Electrical Engineering (EE)

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev