Which Of the following is Fundamental quantity
Electric resistence
Electric Voltage
Electric Charge
Electric Current
The property of an object which can be measured with a mearuing instrument is called___________________
Physical Quantity
Physical Unit
Chemical Quantity
Physical attribute
The hand of energy occupied by free electrons is called________________
Electron band
Conduction band
Energy band
Volance band
In Semiconduelotrs the valancy band and Condution band____________________
Have small gap
Have huge gap
overlap each other
None of above
In insulators the Valancy band and condution band_________________
The electrical prperties of material depends upon number of elctrons in______________________
Innermost orbit
Outermost Orbit
Both of above
Who are minority change Carriers is P-type semi-conductors
Holes
Electrons
Who are minority change Carriers is N-type semi-conductors
Is x = b/c where the percentage error in a,b,&C are 2% , 3% and 5% respectively Total percentage error in x will be_____________________
2.4%
10%
24%
12%
A Cup of tea kept on table losses its heat by______________process
Conduction
Convection
Radiation
All of above
The Process by which heat reaches from surp to earth is
The error due to change in surrounding temp will be called
Instrumental error
Random error
Systematic error
Change is a ____________ Quantity
Fundamental
Derived
Fundamental and deviede
According to ohms law current is directly proprtional to______________________
Magnetic filed
Voltage
Resistance
Charge
SI unit of magnetic Flux is ___________________________
Gauss
Coulomb
Tesla
Weber
Conduction is ___________than convection
Slower
Medium
Faster
Which of the follwoing material is bad wnductor of heat
Steel
Aluminium
Copper
Glass
Cp is always_____________CV
Half of
Smaller than
equal to
Greater than
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 has good reflective porperty
Glass is good conductor of Heat
Glass is light in weight
Glass is bad conductor of heat