Moderate
Which of the following materials is not used for transmission and distribution of electrical power________________?
Correct answer: D. Tungsten
- A. Copper
- B. Aluminium
- C. Steel
- D. Tungsten
Explanation
Copper and aluminium are used as electrical conductors, while steel is used where mechanical strength is important, such as in steel-reinforced conductors. Tungsten is too costly and unsuitable for ordinary transmission and distribution lines.
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