Transistors are
electrons - sensitive device
pressure - sensitive device
holes - sensitive device
temperature - sensitive device
To obtain a p-type germanium semiconductor, it must be doped with
phosphorus
indium
antimony
arsenic
Radio waves of constant amplitude can be generated with
FET
Filter
Rectifier
Oscillator
p - n junction is said to be forward biased, when
the positive pole of the battery is joined to the p-semiconductor and negative pole to the n- semiconductor.
the positive pole of the battery is joined to the n - semiconductor and negative pole to the p - semiconductor
the positive pole of the battery is connected to the n - semiconductor and p - semiconductor
a mechanical force is applied in the forward direction
When n-type semiconductor is heated
number of electrons increases while that of holes decreases
number of holes increases while that of electrons decreases
number of electrons and holes remains same
number of electrons and holes increases equally
Zener diode is used for
producing oscillations in an oscillator
amplification
stabilisation
rectification
The unit of capacitance is
henry
farad
weber
tesla
In p-type semiconductors, current conduction is due to
only free electrons
only holes
greater number of holes and less number of electrons
greater number of electrons and less number of holes
Which of the following when added as an impurity into silicon produces n-type semiconductor?
P
AI
B
Mg
At 0 k, an intrinsic semiconductor behaves as
a super conductor
a semi conductor
a perfect conductor
a perfect insulator