Dimension of Density
What is SI Unit of Temperature?
Kelvin (K)
Celcius (°C)
Farhenite (F)
Joule (J)
A dwped semiconductor is Called _____________________semiConductor
Pentavalent
Extrinsic
Intrinsic
Which of the following is highest energy band
Valancy band
Energy band
Conduction band
None of above
Which of the following is NOT an insulator
Rubber
Wood
Copper
Mica
When Boron (B) is added to Pure Silicon (Si) we Get _________________semiConuctor
N-type
P-type
For semiconductor matereial as the temperature increases its conductivity____________________
Increases
Remains Constant
Decreases
In Conductors there is _________________ gap between valance band and conduction band
Very Large
Large
No
Small
In his low resistance is given by R = V/I error in Voltage measurement is 4% The error in current measurement is 2% The error in resistance measurement will be____________
6%
8%
2%
4%
The boiling Point of water in farfhenite scale is_______________
373ºF
100ºF
273ºF
212ºF
100ºC will be___________when converted into forhentie
373 F
273 F
212 F
-273 F
Which of the following number has significant figure 4
0.020
2.021
0.001
0.300
Unlike charges________________each Other
Repet
Neither attract nor repel
Attract
Protons in atom are ______________________charged
Positive
Negative
Neutral
SI unit of magnetic field intensity is______________________
Candela
Maxwell
Tesla
Weber
The ratio CP/CV is______________________
Less than 1
Greater than 1
Equal to 1
Equal to 0.5
Which mode of heat transfer takes place without actual migration of particiles
Conduction
Conveection
Radiatiion
Conduction is ___________than convection
Faster
Medium
Slower
Which mode of heat transfer can take place even without a medium
Condultion
Convection
Raliation
None of abve
There flask cused to keep liqued Hot or coll for long times has double walled glass vessel because
Glass is good conductor of Heat
Glass is bad conductor of heat
Glass is light in weight
Glass has good reflective porperty