General Science • PhysicsEasy
Which of the following materials possesses zero electrical resistance at very low temperatures?
A. Insulator
B. Superconductor✓ Correct Answer
C. Semiconductor
D. Conductor
💡 Solution & Explanation
Superconductors are specialized materials that exhibit absolute zero electrical resistance and complete expulsion of magnetic flux when cooled below their designated critical transition temperature. Standard conductors like copper possess finite electrical resistance that generates thermal losses during current flow. Superconducting magnets are widely utilized in advanced medical diagnostic equipment like magnetic resonance imaging machines.
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