WorksheetsQuiz 1
Total questions: 11
Worksheet time: 4mins
The separation between valence band and conduction band is measured in
meter
ev
milimeter
none
Resistivity of copper has the unit
ohm-meter
ohm
ohm-1 meter
ohm meter-1
A p-type germanium is obtained on doping intrinsic germanium by
Phosphorus
Aluminum
Boron
Gold
A Zener diode can be used as
rectifier
transmitter
voltage regulator
oscillator
Depletion region is formed in a p-n junction due to
diffusion
recombination
ionization
all of these
p-n diode
transistor
FET
MOSFET
A semiconductor has generally ……………… valence electrons.
2
3
6
4
The forbiddenn energy gap for Germanium is of the order of
(a) 0.7 eV
(b) 0.3 eV
(c) 1.1 eV
(d) 10 eV
Which of the following is a pentavalent impuity added while forming an extrinsic semiconductor ?
Boron
Arsenic
Indium
Gallium
Doping of Semiconductors
materials which can conduct electricity better than insulator, but not as well as conductors.
The process of adding of a certain amount of specific impurities atoms in the pure semiconductor.
when 4 electrons in outermost orbit.
The process of adding an impurity to an intrinsic semiconductor is called
Doping
Ionization
Recombination
Atomic modification
