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United Kingdom, NPL (National Physical Laboratory)
Complete CMCs in Electricity and Magnetism for United Kingdom (.PDF file)
Magnetic fields: magnetic field strength per unit current. Coil system, 1 (A/m) A-1 to 2E+04 (A/m) A-1
Relative expanded uncertainty (k = 2, level of confidence 95 %) in %: 0.015 to 0.25
Resonance, inductance bridge and induced voltage
Frequency: DC to 20 kHz
Approved on 06 August 2013
Internal NMI service identifier: 331
Uncertainty table