Which of the following is the function of superconductor?
a. it conducts electricity at low temperature
b. it offers high resistance to the flow of current
c. it offers no resistance to the flow of electricity
d. it conduct electricity at high temperature
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Answer:
Superconductors are used to make extremely powerful electromagnets to accelerate charged particles very fast. ... These work because a superconductor repels a magnetic field so a magnet will float above a superconductor – this virtually eliminates the friction between the train and the track.
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Superconductors are used to make extremely powerful electromagnets to accelerate charged particles very fast. ... These work because a superconductor repels a magnetic field so a magnet will float above a superconductor – this virtually eliminates the friction between the train and the track.
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