A. 2
B. 3
C. 6
D. 4
Related Mcqs:
- 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 - Addition of pentavalent impurity to a semiconductor creates many________________?
A. Free electrons
B. Holes
C. Valence electrons
D. Bound electrons - An n-type semiconductor is______________?
A. Positively charged
B. Negatively charged
C. Electrically neutral
D. None of the above - 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 - Addition of trivalent impurity to a semiconductor creates many_______________?
A. Holes
B. Free electrons
C. Valence electrons
D. Bound electrons - As the doping to a pure semiconductor increases, the bulk resistance of the semiconductor_______________?
A. Remains the same
B. Increases
C. Decreases
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 - In a semiconductor, current conduction is due to________________?
A. Only holes
B. Only free electrons
C. Holes and free electrons
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 - 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
