The tiny block formed by the arrangement of a small group of atoms is called the
unit cell
none of the above
either or
space lattice
unit cell
The co-ordination number of a simple cubic structure is
6
4
2
8
6
The covalent bond is formed by
none of the above
sharing of electrons between atoms
transfer of electrons between atoms
sharing of variable number of electrons by a variable number of atoms
sharing of electrons between atoms
A perfect conductor has
infinite conductivity
zero conductivity
unity conductivity
none of the above
infinite conductivity
The metal having the lowest temperature coefficient of resistance is
kanthal
aluminium
copper
gold
gold
Commonly used conducting materials are
copper
aluminium
both and
copper and silver
both and
Which of the following materials is preferred for transmitting electrical energy over long distance ?
Steel reinforced aluminium
Steel reinforced copper
Aluminium
Copper
Steel reinforced aluminium
The value of critical field below the transition temperature will
increase
remain unchanged
decrease
any of the above
increase
In a superconductor the value of critical density depends upon
either or
both and
magnetic field strength
temperature
both and
The conductors have transport phenomena of electrons due to
electric field
magnetic field
electromagnetic field
none of the above
electric field
पोस्ट अच्छी लगी हो तो प्लीज नीचे दिए गए लिंक पर क्लिक कर शेयर जरुर करें
0 Comments