A. critical magnetic field
B. transition temperature
C. critical current density
D. none of the above
The structure sensitive property of a super conductor is______________? Read More »
Electrical Engineering Materials A. 18.0°K
B. 9.22°K
C. 4.12°K
D. 1.14’K
The transition temperature of mercury is____________? Read More »
Electrical Engineering Materials A. zero
B. negative real value
C. positive real value
D. complex value
At transition temperature the value of critical field is____________? Read More »
Electrical Engineering Materials A. decreases
B. increases
C. remains constant
D. becomes temperature independent
A. copper
B. kanthal
C. manganin
D. nichrome
The coils of D.C. motor starter are wound with wire of_______________? Read More »
Electrical Engineering Materials A. a ceramic body having metal and caps
B. a wire of platinum
C. a heavy cross-section of copper or aluminium
D. a ceramic tube having carbon rod inside it
An H.R.C. fuse is_______________? Read More »
Electrical Engineering Materials A. electric field
B. magnetic field
C. electromagnetic field
D. none of the above
The conductors have transport phenomena of electrons due to____________? Read More »
Electrical Engineering Materials A. Nichrome
B. Constantan
C. Kanthal
D. Molybdenum
A. a liquid
B. a metal
C. a metal liquid
D. a gas
Mercury as an electric contact material is_______________? Read More »
Electrical Engineering Materials A. Resistance of the conductor
B. Area of the conductor section
C. Length of the conductor
D. All of the above
On which of the following factors does the resistivity of a material depend ? Read More »
Electrical Engineering Materials