Hamad Electrical Engineering Materials 13/12/2021 A. zero conductivity B. unity conductivity C. infinite conductivity D. none of the above Related Mcqs: Which of the following materials is preferred for transmitting electrical energy over long distance ?A. Copper B. Aluminium C. Steel reinforced copper D. Steel reinforced aluminium... The coils of D.C. motor starter are wound with wire of_______________?A. copper B. kanthal C. manganin D. nichrome... Addition of 0.3 to 4.5% silicon to iron ________ the electrical resistivity of iron?A. increases B. decreases C. does not change... The number of atoms per unit cell in B.C.C. structure is_____________?A. 1 B. 2 C. 4 D. 8... 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...
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