General Science • PhysicsMedium
What is the name of the phenomenon where electrical resistance drops to exactly zero below a certain characteristic critical temperature in specific materials?
A. Ferromagnetism
B. Superconductivity✓ Correct Answer
C. Dielectric breakdown
D. Thermoelectricity
💡 Solution & Explanation
Superconductivity is characterized by the complete absence of electrical resistance and the expulsion of magnetic fields when certain materials are cooled below their critical temperature. Ferromagnetism deals with permanent magnetic alignment rather than zero resistance.
More General Science Physics questions
- What is the escape velocity of a body from the surface of the Earth approximately?
- Which optical instrument utilizes two converging lenses of short focal lengths to magnify extremely small…
- What is the phenomenon called when the resistance of certain materials drops to absolute zero when cooled…
- Which of the following describes the working mechanism of a transformer?
- What is the phenomenon in which a beam of light spreads out as it passes through a narrow aperture or around…