To obtain a p-type semi-conductor Si Crystal must be doped with foreign atoms whose valency is_____________?

Related Mcqs:

1. To obtain an n-type semiconductor germanium crystal it must be doped with foreign atoms whose valency is_____________?

   A. 2
   B. 3
   C. 4
   D. 5

2. Semi-conductors with donor atoms and free electrons belong to the type________________?

   A. n
   B. p
   C. mix
   D. any of above

3. Semi-conductor germanium and silicon are_________________?

   A. pentavalent
   B. trivalent
   C. divalent
   D. tetravalent

4. Forward current through a semi conductor diode circuit is due to____________?

   A. minority carriers
   B. majority carriers
   C. holes
   D. electron

5. The specially designed semi-conductor diodes used as fast counters in electronic circuits are______________?

   A. The light emitting diodes
   B. Photo diodes
   C. Photo voltaic cell
   D. Solar cells.

6. The specially designed semi-conductor diodes used as fast counters in electronic circuits are_______________?

   A. The light emitting diodes
   B. Photo diodes
   C. Photo voltaic cell
   D. Solar cells.

7. If the density of atoms remain same along any direction in a crystal is called__________________?

   A. Symmetry
   B. Homogeneity
   C. Isotropy
   D. Cleavage

8. A current carrying conductor is placed in a uniform magnetic field parallel to it. The magnetic force experienced by the conductor is _____________________?

   A. F=1/B
   B. F=1/Bsinθ
   C. F/0
   D. F=1/Bcosθ

9. With increase in temperature the electrical conductivity of intrinsic semi conductor___________________?

   A. Decreases
   B. Increases
   C. Remains same
   D. First increases then decreases

10. Many of the semi conductors are crystals of the type__________________?

    A. Face centred cubic
    B. Body centred cubic
    C. Simple cubic
    D. All of the above