A. A few free electrons
B. Many holes
C. Many free electrons
D. No holes or free electrons
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Related Mcqs:
- At room temperature, an intrinsic semiconductor has_______________?
- A. Many holes only B. A few free electrons and holes C. Many free electrons only D. No holes or free electrons...
- The impurity level in an extrinsic semiconductor is about_______________of pure semiconductor ?
- A. 10 atoms for 108 atoms B. 1 atom for 108 atoms C. 1 atom for 104 atoms D. 1 atom for 100 atoms...
- In an intrinsic semiconductor, the number of free electrons_____________?
- A. Equals the number of holes B. Is greater than the number of holes C. Is less than the number of holes D. None of the above...
- A semiconductor has ______________ temperature coefficient of resistance?
- A. Positive B. Zero C. Negative D. None of the above...
- When the temperature of an extrinsic semiconductor is increased, the pronounced effect is on_________________?
- A. Junction capacitance B. Minority carriers C. Majority carriers D. None of the above...
- At room temperature, an intrinsic silicon crystal acts approximately as_______________?
- A. A battery B. A conductor C. An insulator D. A piece of copper wire...
- A semiconductor has generally_______________valence electrons?
- A. 2 B. 3 C. 6 D. 4...
- When a pentavalent impurity is added to a pure semiconductor, it becomes________________?
- A. An insulator B. An intrinsic semiconductor C. p-type semiconductor D. n-type semiconductor...
- A semiconductor is formed by ______________bonds?
- A. Covalent B. Electrovalent C. Co-ordinate D. None of the above...
- A hole in a semiconductor is defined as_________________?
- A. A free electron B. The incomplete part of an electron pair bond C. A free proton D. A free neutron...
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