The minority carrier concentration is largely a function of_____________?

Related Mcqs:

1. Overhead telephone wires are made of_____________?

   A. aluminium B. steel C. ACSR conductors D. copper...

2. Thermocouples are mainly used for the measurement of_____________?

   A. temperature B. resistance C. eddy currents D. coupling co-efficient...

3. The resistivity of a metal is a function of temperature because_____________?

   A. the amplitude of vibration of the atoms varies with temperature B. the electron density varies with temperature C. the electron gas density varies with temperature...

4. The tiny block formed by the arrangement of a small group of atoms is called the____________?

   A. unit cell B. space lattice C. either A. or (b) D. none of the above...

5. The superconductivity is due to____________?

   A. the crystal structure having no atomic vibration at 0°K B. all electrons interact in the super-conducting state C. the electrons jump into nucleus at 0°K D. none of the above...

6. Which of the following is the poorest conductor of electricity ?

   A. Carbon B. Steel C. Silver D. Aluminium...

7. Thermonic emission occurs in______________?

   A. vacuum tubes B. copper conductors C. ferrite cores D. transistors...

8. Due to which of the following factors the brush wear rate is altered ?

   A. Speed of the machine B. Contact pressure C. Surface conditions of brush and commutator D. Excessive sparking E. All of the above...

9. ___________ has the best damping properties?

   A. Diamond B. High speed steel C. Mild steel D. Cast iron...

10. is an element used in semiconductors whose atoms have three valence electrons?

    A. An acceptor B. A donor C. Germanium D. Silicon...