Transistors are
electrons - sensitive device
pressure - sensitive device
holes - sensitive device
temperature - sensitive device
emitter
base
collector
Any of the above depending upon the nature of transistor.
The correct relationship between the two current gains and in a transistor is
Which of the following when added as an impurity into silicon produces n-type semiconductor?
P
Al
B
Mg
n-type semiconductor
p-type semiconductor
n-type conductor
insulator
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
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
At absolute zero, Si acts as
non-metal
metal
None of these
To obtain a p-type germanium semiconductor, it must be doped with
phosphorus
indium
antimony
arsenic
Which one of the following is the weakest kind of the bonding in solids?
Ionic
Metallic
Van der Waals'
Covalent
