Substances whose specific resistance abruptly decreases at very low temperature are called___________?
Correct answer: D. superconductors
- A. insulators
- B. conductors
- C. semiconductors
- D. superconductors
Explanation
A superconductor undergoes a sharp transition to nearly zero resistivity below its critical temperature. This abrupt low-temperature change distinguishes it from ordinary conductors and semiconductors.
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