n-type semiconductor
p-type semiconductor
n-type conductor
insulator
To obtain a p-type germanium semiconductor, it must be doped with
phosphorus
indium
antimony
arsenic
Transistors are
electrons - sensitive device
pressure - sensitive device
holes - sensitive device
temperature - sensitive device
The current gain for a transistor working as common base amplifier is 0.96. If the emitter current is 7.2 mA, then the base current is
The transfer ratio β of a transistor is 50. The input resistance of the transistor when used in the common emitter configuration is 1kΩ. The peak value of the collector AC current for an AC input voltage of 0.01V peak is
100 μA
0.01 mA
0.25 mA
500 μA
Sodium has body centred packing. If the distance between two nearest atoms is 3.7 Å, then the lattice parameter is
3.3 Å
3.9 Å
4.3 Å
4.8 Å
When n-type semiconductor is heated
number of electrons increases while that of holes decreases
number of electrons and holes remain same
number of electrons and holes increases equally
Sodium has body centred packing. Distance between two nearest atoms is 3.7Å. The lattice parameter is
6.8Å
4.3Å
3.0Å
8.6Å
Radio waves of constant amplitude can be generated with
FET
filter
rectifier
oscillator
The correct relationship between the two current gains and in a transistor is
