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WBCS Preliminary Examination 2020 — General Studies · Question 113 of 200

Q113
General SciencePhysics
Superconductors are substances which
  1. a.conduct electricity at lower temperature
  2. b.offer high resistance to the flow of current
  3. c.offer no resistance to the flow of current
  4. d.conduct electricity at high temperature

Answer: (C) offer no resistance to the flow of current

Superconductivity is the property of certain materials to conduct electric current with exactly zero electrical resistance, typically below a critical temperature.