Von Klitzing constant: quantum Hall resistance

klitzing is the von Klitzing constant, Rₖ = h/e², approximately 25.8 kΩ. It characterizes quantized Hall resistance and provides a precision resistance standard.

Physics context

It combines the Planck constant and elementary charge in quantum electrical metrology. Use to() to express the result in ohms and format() for reports.

Caveat

Use the constant symbolically or with adequate precision; rounded values are unsuitable for standards work.