KWh ( kilo - watt - Hour ) is a unit of ______________
Energy
Power
Work
Pressure
Dimension of Pressure
SI Unit of temp is__________________
F [ Farhenite ]
ºC [ Celcius ]
K [ Kelvin ]
J [ Joule }
In Semiconduelotrs the valancy band and Condution band____________________
Have small gap
Have huge gap
overlap each other
None of above
Arsenics (As), Antimony (Sh) and Phosphrous (P) are examples of
Trivalent
Divalent
Tetravalent
Pentavalent
In Conductors there is _________________ gap between valance band and conduction band
Small
No
Very Large
Large
When Boron (B) is added to Pure Silicon (Si) we Get _________________semiConuctor
N-type
P-type
A Pentawalent Impurity is called as____________impurity
Doner
Acceptor
Intrinsic
Exteinsic
The Length of rectangle is 1.25 cn and width is 3.354cm The area of rectange in significant figures with be____________
4.1
4.1925
4.192
4.19
The Boiling point of water in Kelvin scale of temperature is _______________
100 K
373 K
273 K
212 K
The boiling Point of water in farfhenite scale is_______________
373ºF
100ºF
212ºF
273ºF
How many significant figures are there in reading 5000 10
8
1
10
5
"Weber" is SI unit of ___________________________
Magnetic filed intensity
Electric field intensity
Magnetic flux
Magnetic Strength
According to coulomb's loa and Force of attraction/repulsion is inversely proportional to________________________
Distance between charges
Square root of distance between charges
Mutipuication of Charges
Square of distances between charges
SI unit of magnetic field intensity is______________________
Candela
Weber
Maxwell
Tesla
Which mode of heat transfer takes place without actual migration of particiles
Conduction
Conveection
Radiatiion
The ratio CP/CV is______________________
Less than 1
Greater than 1
Equal to 1
Equal to 0.5
Which mode of heat transfer is slowest of all other models
Convection
Radiation
Cp is always_____________CV
Half of
equal to
Smaller than
Greater than
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