Home › Red Seal Trades Exams › Physics › Electric Circuits › At very low temperatures some materials reach ze…
At very low temperatures some materials reach zero resistivity, becoming:
ASupercapacitors
BSuperinsulators
CSuperabsorbers
DSuperconductors
Answer & Solution
Correct answer: D. Superconductors
1. Resistivity normally falls as temperature drops.
2. In some materials it drops all the way to zero.
3. Those materials are superconductors.
_Source: OpenStax College Physics 2e, Chapter 20, Electric Current, Resistance, and Ohm's Law._
Related questions
An automatic but restorable switch that opens on excessive current is a circuit:A metal strip with a low melting point that permanently breaks a circuit is a:A low-resistance path allowing a very large current between terminals is a:The two known hazards of electricity are shock and:That AC voltage swings from peak to peak and back each second a number of times equal to:A 120 V AC supply has a peak voltage swinging to about:Household electricity in the United States is quoted as an rms voltage of:The flow of electric charge in only one direction is called: