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Electrical Engineering Materials - Interview Questions and Answers

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66. Steel wire is used as
A. overhead telephone wire
B. earth wire
C. core wire of ACSR
D. all of the above
Explanation:
67. A perfect conductor has
A. zero conductivity
B. unity conductivity
C. infinite conductivity
D. none of the above
Explanation:
68. Which of the following is an advantage of stranded conductor over equivalent single conductor ?
A. Less liability to kink
B. Greater flexibility
C. Less liability to break
D. All of the above
Explanation:
69. is an element used in semiconductors whose atoms have three valence electrons.
A. An acceptor
B. A donor
C. Germanium
D. Silicon
Explanation:
70. The minority carrier concentration is largely a function of
A. forward biasing voltage
B. reverse biasing voltage
C. temperature
D. the amount of doping
Explanation:
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