Question

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

The correct option is A once current is set up in a superconductor ring, it will continue indefinitely even if the battery is off.

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.