Why Are Ceramic Superconductors Not Currently Practical for Widespread Transmission

question 125

Multiple Choice

Why are ceramic superconductors not currently practical for widespread transmission of electricity?
I.They are relatively expensive in comparison to metals.
II.They require extremely cold temperatures.
III.They are brittle and lack ductility.

• A) I only
• B) II only
• C) III only
• D) I and II only
• E) I, II, and III

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