Magnetic flux quantum
Try it yourself:
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magneticFluxQuantum
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magneticFluxQuantum is the quantum of magnetic flux, important in superconductivity and Josephson-junction physics.
It relates Planck’s constant and elementary charge in quantum electromagnetic formulas. Use to() for webers and format() to report scales.
Do not confuse flux quantum with magnetic field; field depends on area as well as flux.
Enter magneticFluxQuantum on a calculator line to see its built-in value, or place the name inside a longer expression. Keep any displayed unit attached when converting or combining physical quantities, and check that every other value uses a compatible dimension.
The example above is editable, so you can replace surrounding values and test the constant in your own formula. Browse all constants to compare related values and notation.