On the alternating current resistance of solenoidal coils
S. Butterworth
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Source: Crossref
Published: Apr 1, 1925
DOI: 10.1098/rspa.1925.0050
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Abstract In a paper published some time ago by the present writer a formula was given for computing the alternating current resistance of single-layer coils in which the spacing of the wires is not too close. Recently Mr. C. N. Hickman has made a comparison between the measured and computed values of the resistance of solenoidal coils and has used the above formula. Owing mainly to a misconception in regard to the scope of the formula, he came to the conclusion that the formula could be in error by as much as 300 per cent. It has been pointed out, however, that when the formula is legitimately applied the discrepancy is reduced to 30 per cent. In order to account for the outstanding difference it is necessary to extend the theory so as to include closely wound coils. This extension has been made in the present paper, with the result that the difference between theory.
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