Once Ampere current is given
1A = 1C / 1 0hm
1A = 1s * 1C
1A = 1S / 1C
1A = 1C / 1S
Which of the following is fundamental unit ?
Mol
Kelvin
Candella
All of above
Which of the following is NOT a conductor
Mica
Iron
Aluminium
Copper
Absolute zero on kelivin scale is equal to_______________
-373K
-273K
100 K
0K
Which of the following is a semiconductor material
Germanium
When Boron (B) is added to Pure Silicon (Si) we Get _________________semiConuctor
N-type
P-type
None of above
The electrical prperties of material depends upon number of elctrons in______________________
Innermost orbit
Outermost Orbit
Both of above
When Aluminium (Al) is added to Pure Germanium (Ge) we get___________Semiconductor
The Measurement of radius as a circle has error of 1% The error in measuremnet as its area (A) will be______________
0.5%
2%
3.14%
1%
The Process by which heat reaches from surp to earth is
Convection
Radiation
Conduction
100ºC will be when converted into kelvin will become
373 K
-273 K
212 K
273 K
How many significant figures this reading has 0.0069
5
2
4
3
1Volt is given by __________________________-
1A/1C
1C/1J
1A/1J
1J/1C
"Weber" is SI unit of ___________________________
Magnetic filed intensity
Magnetic Strength
Magnetic flux
Electric field intensity
Unlike charges________________each Other
Repet
Attract
Neither attract nor repel
Which mode of heat transfer can take place even without a medium
Condultion
Raliation
None of abve
Conduction is ___________than convection
Medium
Slower
Faster
Which mode of heat transfer takes place without actual migration of particiles
Conveection
Radiatiion
Which mode of heat transfer is fastest as all other modes
Radilation
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 light in weight
Glass is bad conductor of heat
Glass has good reflective porperty