Create a custom practice set
Pick category, difficulty, number of questions, and time limit. Start instantly with your own quiz.
Generate QuizGK Question
High-temperature superconductors typically belong to which material class?
- Cuprates
- Iron-based pnictides
- Nickelates
- All of these
Answer: All of these
Cuprates (e.g., YBCO, Tc~90K), iron pnictides (e.g., SmFeAsO, Tc~55K), nickelates (recent discovery) exhibit superconductivity above liquid nitrogen temperature. Mechanism remains unsolved; key for lossless power transmission. [[NCERT Physics Class 12, DST Reports]]