To obtain a p-type germanium semiconductor, it must be doped with
phosphorus
indium
antimony
arsenic
n-type semiconductor
p-type semiconductor
n-type conductor
insulator
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
emitter
base
collector
Any of the above depending upon the nature of transistor.
Diamond is very hard because
it is covalent solid
it has large cohesive energy
high melting point
insoluble in all solvants
The following truth table belongs to which of the following four gates?
NOR
XOR
NAND
OR
Transistors are
electrons - sensitive device
pressure - sensitive device
holes - sensitive device
temperature - sensitive device
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
Radio waves of constant amplitude can be generated with
FET
filter
rectifier
oscillator
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
