Ampère balance

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Ampère balance

[′äm‚per ‚bal·əns]
(electricity)
References in periodicals archive ?
A good example of an experiment developed to realize the SI base unit of current is the ampere balance [6].
Historically ampere balances were also used to measure the unit of voltage in the United States; if a known current flows through a known resistance then a known voltage drop is generated.
Ampere balances have been in use for nearly a hundred years, but suffer from serious shortcomings.