A. zero
B. one
C. negative
D. more than one
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Related Mcqs:
- Commonly used conducting materials are_____________?
- A. copper B. aluminium C. both (A) and (B) D. copper and silver E. platinum and gold...
- The structure sensitive property of a super conductor is______________?
- A. critical magnetic field B. transition temperature C. critical current density D. none of the above...
- Super conductivity can be destroyed by_____________?
- A. adding impurities B. reducing temperatures C. application of magnetic field D. any of the above...
- The metal having the lowest temperature coefficient of resistance is_________________?
- A. gold B. copper C. aluminium D. kanthal...
- By increasing impurity content in the metal alloy the residual resistivity always_____________?
- A. decreases B. increases C. remains constant D. becomes temperature independent...
- The resistivity of a metal is a function of temperature because_____________?
- A. the amplitude of vibration of the atoms varies with temperature B. the electron density varies with temperature C. the electron gas density varies with temperature...
- The conductivity of a metal is determined by____________?
- A. the electronic concentration and the mobility of the free electrons B. the number of valence electrons per atom C. either (A) or (B) D. none of the above...
- The converse of hardness is known as______________?
- A. malleability B. toughness C. softness D. none of the above...
- __________ is the main constituent of glass?
- A. Fe203 B. Si02 C. AI2O3 D. B2O3...
- Steel wire is used as____________?
- A. overhead telephone wire B. earth wire C. core wire of ACSR D. all of the above...
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