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
Related Mcqs:
- Mercury as an electric contact material is_______________?
A. a liquid
B. a metal
C. a metal liquid
D. a gas - For germanium the forbidden energy gap is_______________?
A. 0.15 eV
B. 0.25 eV
C. 0.5eV
D. 0.7eV - The co-ordination number of a simple cubic structure is______________?
A. 2
B. 4
C. 6
D. 8 - Superconductors are becoming popular for use in________________?
A. generating very strong magnetic field
B. manufacture of bubble memories
C. generating electrostatic field
D. generating regions free from magnetic field - At transition temperature the value of critical field is____________?
A. zero
B. negative real value
C. positive real value
D. complex value - _____________is viscoelastic?
A. Cast-iron
B. Graphite
C. Rubber
D. Glass - Most of the common metals have _________ structure?
A. linear
B. hexagonal
C. orthorhombic
D. cubic - Carbon rods are used in wet and dry cells because_____________?
A. carbon rod serves as conductor
B. carbon can resist the attack of battery acid
C. both (A) and (B)
D. either (A) or (B) - Copper, even though costly, finds use in the windings of electrical machines because_____________?
A. copper points offer low contact resistance
B. copper can be easily soldered and welded
E. copper windings are less bulky and the machines become compact
D. all of the above - For a particular material the Hall coefficient was found to be zero. The material is______________?
A. insulator
B. metal
C. intrinsic semiconductor
D. none of the above
