At absolute zero, Si acts as
non-metal
metal
insulator
None of these
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
Diamond is very hard because
it is covalent solid
it has large cohesive energy
high melting point
insoluble in all solvants
Transistors are
electrons - sensitive device
pressure - sensitive device
holes - sensitive device
temperature - sensitive device
When a triode is used as an amplifier the phase difference between the input signal voltage and the output is
zero
emitter
base
collector
Any of the above depending upon the nature of transistor.
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
The correct relationship between the two current gains and in a transistor is
n-type semiconductor
p-type semiconductor
n-type conductor
Radio waves of constant amplitude can be generated with
FET
filter
rectifier
oscillator
