An experiment which shows negligible reaction from eddy currents in iron on their inducing field is described. The observations are shown to agree with the extension of Searle's results for the magnetic field of a long current filament in iron to an aggregation of current filaments such as eddy currents.
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References
1.
SearleG. F. C., ‘On the Magnetic Field due to a Current in a Wire Placed Parallel to the Axis of a Cylinder of Iron,’The ElectricianXL, pp. 410 and 503 (1897–98).
