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Magnetism And Matter — Physics STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 SciencePhysicsMagnetism And Matter1 Mark
MCQ
The most important features of superconductor is that:
  • A
    Once current is set up in a superconductor ring, it will continue indefinitely even if the battery is off.
  • B
    It has high efficiency compared to other conductors.
  • C
    It can pass maximum no of electrons when current is passed through it.
  • D
    None of the above.
✓

Answer

  1. Once current is set up in a superconductor ring, it will continue indefinitely even if the battery is off.

Explanation:

The most important features of superconductor is:

In a superconductor, the electric resistance is equal to zero. This is why an electric current can circulate forever in a superconducting ring even when the battery has been unplugged.

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