When the temperature of an extrinsic semiconductor is increased, the pronounced effect is on_________________?

Related Mcqs:

1. 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...

2. A semiconductor has ______________ temperature coefficient of resistance?

   A. Positive B. Zero C. Negative D. None of the above...

3. 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...

4. At absolute temperature, an intrinsic semiconductor has________________?

   A. A few free electrons B. Many holes C. Many free electrons D. No holes or free electrons...

5. When a pure semiconductor is heated, its resistance_________________?

   A. Goes up B. Goes down C. Remains the same D. Can’t say...

6. Addition of pentavalent impurity to a semiconductor creates many________________?

   A. Free electrons B. Holes C. Valence electrons D. Bound electrons...

7. An n-type semiconductor is______________?

   A. Positively charged B. Negatively charged C. Electrically neutral D. None of the above...

8. Addition of trivalent impurity to a semiconductor creates many_______________?

   A. Holes B. Free electrons C. Valence electrons D. Bound electrons...

9. 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...

10. 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...