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

Related Mcqs:

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

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

2. The energy band occupied by the valence electrons is called___________________?

   A. Energy state
   B. Valence band
   C. ve energy state
   D. conduction band

3. Materials in which valence electrons are tightly bound to their atoms at low temperature are called___________________?

   A. Semi conductor
   B. Super conductors
   C. Insulators
   D. Conductor

4. The electrons in conduction band are free to___________________?

   A. Transport vibrations
   B. Transport signals
   C. Transport charge
   D. Transport impulses

5. In an X-ray tube electrons each of charge e are accelerated through V potential difference allowed to hit a metal target. The wavelength of the X-rays emitted is_______________?

   A. he/ev
   B. he/Vc
   C. eV/h
   D. impossible to predict

6. The minimum wavelength of X-rays produced by the bombardment of electrons on the screen of a television set where the accelerating potential is 2.0K V will be______________?

   A. 6.2 x 10-10m
   B. 9.1 x 10-18m
   C. 3.11 x 10-10m
   D. 4 x 10-10m

7. How many electrons per second constitute a current of one micro ampere?

   A. one electron
   B. 10 ^–6 electrons
   C. 10⁶ electrons
   D. 6.25 × 10¹² electrons

   Submitted by: Tauseef Ali

8. Maximum number of rectangular components are_____________?

   A. 1
   B. 2
   C. 3
   D. 4

9. The dimensions of the coefficient of viscosity are_____________?

   A. ML-1T-1
   B. M2L1T1
   C. ML1T-1
   D. M2L-1T-1

10. 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)