The voltage gain of an amplifier with 9% negative feedback is 10. The voltage gain without feedback will be
90
10
1.25
100
For a given circuit of ideal p-n junction diode, which of the following is correct?
In forward biasing the voltage across R is V
In reverse biasing the voltage across R is V
In forward biasing the voltage across R is 2V
In reverse biasing the voltage across R is 2V
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
The circuit is equivalent to
AND gates
NAND gate
NOR gate
OR gate
In bcc structure of lattice constant a, the minimum distance between atoms is
Radiowaves of constant amplitude can be generated with
FET
filter
rectifier
oscillator
If the lattice parameter for a crystalline structure is 3.6Å, then the atomic radius in fcc crystals is
1.81Å
2.10Å
2.92Å
1.27Å
If a full wave rectifier circuit is operating from 50Hz mains; the fundamental frequency in the ripple will be
70.7Hz
100Hz
25Hz
59Hz
In a p-n junction photo cell, the value of the photo-electromotive force produced by monochromatic light is proportional to
the barrier voltage at the p-n junction
the intensity of the light falling on the cell
the frequency of the light falling on the cell
the voltage applied at the p-n junction
The correct relationship between the two current gains and in a transistor is
