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Published June 1952 | Published
Journal Article Open

An Absolute Ampere Current Balance for Laboratory Use

Neher, H. V.

Abstract

The ampere current balance herein described has been in use for four years as a regular experiment of a sophomore physics course. It has the following merits: (1) It is simple to construct; (2) it is absolute in that the current may be calculated from the dimensions and balancing weight only; (3) it is subject to a high degree of accuracy, especially for the larger currents; (4) it may be used for alternating as well as direct currents; (5) when current is passed through the movable conductor only, the balance may be used to measure the horizontal component of the earth's magnetic field.

Additional Information

©1952 American Association of Physics Teachers. (Received February 12, 1952) In conclusion the author wishes to thank Mr. T. Harvey for taking the photographs which are reproduced in Figs. 3 and 4.

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Created:
August 21, 2023
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October 16, 2023