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Observe the following table and answer the questions. Electrical resistivities of some substances, at 20°C are given as follows:
Q. Which element will be used for electrical transmission lines:
  • a)
    Iron
  • b)
    Copper
  • c)
    Tungsten
  • d)
    mercury
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
Observe the following table and answer the questions. Electrical resi...
(i) Silver is a better conductor, lower resistivity. (ii) Copper, economical/low resistivity. (iii) Nichrome; Very high resistivity/ as it is an alloy, it does not oxidize readily at high temperature
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Observe the following table and answer the questions. Electrical resi...
Copper wires can be used for electrical transmission lines because copper has lower resistivity. Power loss in the form of heat is minimum when electricity is passed through copper wires.
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Observe the following table and answer the questions. Electrical resistivities of some substances, at 20°C are given as follows:Q. Which element will be used for electrical transmission lines:a)Ironb)Copperc)Tungstend)mercuryCorrect answer is option 'B'. Can you explain this answer?
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