In P-N dioude the border where P region meels N-region is Called________________
Barrier
Depletion
Crossechtion
Junction
The resistivity as semiconductor is________________________
More than insulators
Less than conductors
Between insulator and conductors
All of above
Which of the following is trivalent impurity ____________
Arsenis (As)
Antimony (Sb)
Germanium (Ge)
Boron (B)
The resisitivity as insulator is between____________________-
None of above
There is no Forbidden energy gap in__________Material
Conductor
Insulator
Semi conductor
None of Above
Which mode of heat transfer is fastest as all other modes
Conduction
Convection
Radilation
The ratio CP/CV is______________________
Less than 1
Equal to 1
Greater than 1
Equal to 0.5
Which of the follwoing material is bad wnductor of heat
Steel
Glass
Copper
Aluminium
Which mode of heat transfer is slowest of all other models
Radiation
Conduction is ___________than convection
Slower
Medium
Faster
The Boiling point of water in Kelvin scale of temperature is _______________
373 K
100 K
212 K
273 K
100ºC will be___________when converted into forhentie
-273 F
373 F
212 F
273 F
273.15 K when converted into desree celcius will become________________
273ºC
0ºC
100ºC
32ºC
The Process by which heat reaches from surp to earth is
273.15 K when conveted into Forhenite will become___________________
100ºF
32ºF
0ºF
373ºF