Lines of Force

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“Lines of force of a circular loop. If a current flow through the loop in the direction indicated, the lines of force both inside and outside the loop, will cross the plane of the loop at right angles, and all those which cross the loop on the inside will pass through the plane in one direction...while all on the outside will return through the plane in the opposite direction.” -Hawkins, 1917




Hawkins and Staff Hawkins Electrical Guide Number One (New York: Theo. Audel and Company, 1917) 114


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