The net charge on n-type material is____________________?

Related Mcqs:

1. A cube of side 5 cm has a charge of 6 C. The surface density of charge is_________?

   A. 100 C m^–2
   B. 200 C m^–2
   C. 300 C m^–2
   D. 400 C m^–2

   Submitted by: Tauseef Ali

2. A certain stress applied to an elastic material produces a certain strain in it. If the elastic limit is not exceeded the energy gained per unit volume of the material is given by_________________?

   A. Stress/strain
   B. (stress/strain)
   C. Stress x strain
   D. (Stress / strain)

3. Electrons present in p-type material due to thermal pair generation are_____________?

   A. majority carriers
   B. minority carriers
   C. dual carriers
   D. blockers

4. In a semiconductors the charge carriers are ___________________?

   A. Holes only
   B. Electrons only
   C. Electron and holes both
   D. All of the above

5. A wire is stretched by a force F which causes an extension 1. The energy stored in the wire is____________________?

   A. The extension of the wire is proportional to the force applied
   B. The weight of the wire is negligible
   C. The wire is not stretched beyond its elastic limit
   D. The cross sectional area of the wire remains constant

6. A wire obeys Hooks law is of length 11 when it is in equilibrium under a tension F1. Its length becomes 12 when the tension is increased to F2. The energy stored in the wire during this process is____________________?

   A. (F1+F2) (121+122)
   B. (F1+F2) (122-112)
   C. (F1+F2) (12-11)
   D. (F1+F2) (12-11)

7. A particle of mass m charge q and speed V enters a uniform magnetic radius r. The radius r of the circle is_________________?

   A. independent mass m
   B. directly proportional to m
   C. directly proportional to q
   D. directly proportional to B

8. The charge on an electron was determine by ________________?

   A. Ampere
   B. Maxwell
   C. Millikan
   D. Thomson

9. The charge on alpha particles is________________?

   A. Plus one
   B. Plus two
   C. Minus two
   D. Minus one

10. A million electron are added to a pith ball. Its charge is________?

    A. – 1.6 × 10^–12 coulomb
    B. – 1.6 × 10^–13 coulomb
    C. – 1.6 × 10 ^–18 coulomb
    D. – 1.6 × 10 coulomb

    Submitted by: Tauseef Ali