Symbol m_x
is part of the quantity the equation computes from the expression on the right.
Read this term in its guide →Published equation contexts
Why this formula appears here
The Kibble balance runs in two modes. In weighing mode, the weight of an artefact of mass m is balanced by the force on a coil of wire length l carrying current I₁ in a radial field of flux density B. In moving mode, the same coil is driven vertically at velocity v through the same field and the induced voltage U₂ is measured [ 4 ] : . The geometric factor Bl appears in both and is eliminated between them:
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Symbol g
g is part of the quantity the equation computes from the expression on the right.
Read this term in its guide →Symbol I_1
is an input to the expression that computes the quantity on the left.
Read this term in its guide →Symbol B
B is an input to the expression that computes the quantity on the left.
Read this term in its guide →Symbol l
l is an input to the expression that computes the quantity on the left.
Read this term in its guide →Symbol U_2
is an input to the expression that computes the quantity on the left.
Read this term in its guide →How to interpret it
Read it with the definitions, units, and assumptions supplied by the article.
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Published contexts (1)
A symbol can carry a different meaning in another article. Each occurrence keeps its own guide and term definitions.
Equation 2 · Metrology
The Last Artefact: Redefining the Kilogram
This equation states an equality: the expressions on both sides have the same value under the article’s assumptions.
The Kibble balance runs in two modes. In weighing mode, the weight of an artefact of mass m is balanced by the force on a coil of wire length l carrying current I₁ in a radial field of flux density B. In moving mode, the same coil is driven vertically at velocity v through the same field and the induced voltage U₂ is measured [ 4 ] : . The geometric factor Bl appears in both and is eliminated between them: