MDCAT Physics MCQ #537

MDCAT Physics MCQ #537

1. Question 1

   Q1. What distinguishes superconductors from perfect conductors?

   • A) Zero resistance only at high temps
   • B) Expel magnetic fields
   • C) Store energy in magnetic field
   • D) Have infinite resistivity

   Answer: Expel magnetic fields

   Explanation: Meissner effect identifies superconductors. Option A describes normal conductors.