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Electrical Engineering Materials - Interview Questions and Answers

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1. The conductivity of a conductor can be increased by
A. decreasing its temperature
B. increasing its temperature
C. decreasing its vibration
D. increasing its vibration
Explanation:
2. In a superconductor the value of critical density depends upon
A. magnetic field strength
B. temperature
C. either (a) or (b)
D. both (a) and (b)
Explanation:
3. The formula ____ determines the number of electrons that can be accommodated in any level.
A. 2n2
B. 4n2
C. 2n3
D. 4ns
Explanation:
4. At transition temperature the value of critical field is
A. zero
B. negative real value
C. positive real value
D. complex value
Explanation:
5. The transition temperature of mercury is
A. 18.0�K
B. 9.22�K
C. 4.12�K
D. 1.14'K
Explanation:
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