1 |
If Current flowing through switch then the output is expressed as: |
0
1
-1
2
|
2 |
The device which converts digital quantities into analog quantities is called: |
ADC
DAC
ACD
CAD
|
3 |
The base of computer operation are: |
1,2
0, 1
0, 2
1, 10
|
4 |
Those quantities whose values do not remain constant are called: |
physical quantities
Digital quantites
Log quantities
Analog quantities
|
5 |
Those quantities whose values change gradually or stay constant are called: |
Physical quantities
Digital quantities
Log quantities
Analog quantities
|
6 |
Which device is used to show the change in the value of current or electrical potential as a graph? |
Cathode ray tube
Electron gun
Oscilloscope
Transformer
|
7 |
For the emission of electrons from the tungsten filament the values of current and voltage are taken as: |
0.1 A and 2V
0.2 A and 4V
0.3A and 6V
0.4A and 8V
|
8 |
The emission of electron from the surface of hot metal is called: |
Ionization
Conduction
Thermionic emission
Convection
|
9 |
In 1950, physicists observed that in cathode ray tube a special type of rays produced from cathode, these rays were called: |
Cathode rays
X-rays
Alpha rays
Gamma rays
|