22-10-2012, 05:46 PM
BASIC ELECTRONICS OBJECTIVE TYPE QUESTIONS
Basic-Electronics-Objective-Type-Questions.pdf (Size: 378.8 KB / Downloads: 252)
SEMICONDUCTOR DIODES & APPLICATIONS
1.] Flow of electrons is generally termed as _____________.
a) electric current b) electric shock
c) semiconductor d) none of the above
2.] A _______________ is a material which offers very little resistance to the flow of current through it.
a) good conductor b) insulator
c) semiconductor d) none of the above
3.] The resistance offered by ______________ is extremely large for the flow of current through it.
a) good conductor b) insulator
c) semiconductor d) none of the above
4.] The materials which behave like perfect insulators at low temperatures & at higher temperatures, they behave like a good conductors are termed as ________.
a) good conductor b) insulator
c) semiconductor d) none of the above
5.] The conductivity of a semiconductor _____________ with temperature.
a) increases b) decreases
c) can’t say d) none of the above
6.] The conductivity of a good conductor _____________ with temperature.
a) increases b) decreases
c) can’t say d) none of the above
7.] The resistance of a semiconductor _____________ with temperature.
a) increases b) decreases
c) can’t say d) none of the above
8.] The resistance of a good conductor _____________ with temperature.
a) increases b) decreases
c) can’t say d) none of the above
9.] The charge of an electron is ___________________.
a) 1.602*10+27 Coulomb b) 1.602*10-27 Coulomb
c) 1.602*10+19 Coulomb d) 1.602*10-19 Coulomb
10.] The total number of electrons in an atom depends upon ____________.
a) the atomic mass b) the atomic weight
c) the atomic number d) the atomic size