The basics
Kelvin (K)
The scale that starts at absolute zero, in steps of one degree Celsius. Room temperature is about 293 K, liquid nitrogen boils at 77 K, liquid helium at 4.2 K.
Why kelvin matters
Every number on a conductor datasheet is quoted at a temperature, so two figures given without their kelvin are not comparable.
Where kelvin comes up
Related to kelvin
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