Q.1
The most commonly used semiconductor is ___________
Q.2
An n-type semiconductor is
Q.3
A trivalent impurity has valence electrons
Q.4
The random motion of holes and free electrons due to thermal agitation is called ___________
Q.5
In a semiconductor, current conduction is due to
Q.6
As the doping to a pure semiconductor increases, the bulk resistance of the semiconductor ___________
Q.7
The leakage current across a pn junction is due to ___________
Q.8
When a pure semiconductor is heated, its resistance ___________
Q.9
When a pentavalent impurity is added to a pure semiconductor, it becomes
Q.10
The barrier voltage at a pn junction for germanium is about
Q.11
In the depletion region of a pn junction, there is a shortage of
Q.12
A reverse bias pn junction has ___________
Q.13
A hole in a semiconductor is defined as ___________
Q.14
With forward bias to a pn junction , the width of depletion layer
Q.15
At room temperature, an intrinsic silicon crystal acts approximately as
Q.16
A pn junction acts as a ___________
Q.17
A forward biased pn junction diode has a resistance of the order of
Q.18
A reverse biased pn junction has resistance of the order of
Q.19
A semiconductor is formed by bonds.
Q.20
The leakage current in a pn junction is of the order of
0 h : 0 m : 1 s