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XL.—The Variation of Young's Modulus under an Electric Current.

Published online by Cambridge University Press:  15 September 2014

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IN my first paper on this subject the behaviour of soft iron, steel, copper, and platinum was examined. In this paper the experiments have been carried a stage further, viz. the reaching of the cyclically steady state with a small load, the effect when the load is increased, and the heating by the ordinary method.

As the behaviour of the wire when heated by the current was somewhat complicated, I considered it necessary, for purposes of comparison, to heat the wire in some other manner. To effect this, a double-walled tube of tinned iron was made, through the inner tube of which the wire was passed, and the ends plugged with cotton-wool. The wire was horizontal, and measurements were made with the microscopes as in the other experiments.

Type
Proceedings
Copyright
Copyright © Royal Society of Edinburgh 1908

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References

page 652 note * Proc. R.S.E., vol. xxvii., p. 343, read June 1907

page 652 note † Proc. R.S., vol. lxvii., p. 180.

page 653 note * Phys. Rev., vol. iii., p. 452.

page 653 note † Math, and Phys. Papers, vol. ii., p. 298. The fourth paper of the series on “The Electro-Dynamic Qualities of Metals.”

page 655 note * Phil. Mag., 1899, p. 539.

page 672 note * Phys. Rev., vol. ix., p. 116.

page 673 note * Phys. Rev., vol. x., p. 161.

page 674 note * Ann. Chim. Phys., (3) vol. xii, p. 385. 1844.

page 674 note † Gaz. Chim. ital., vol. vii., p. 1.

page 674 note ‡ Beiblätter, xii., p. 307. 1888.

page 674 note § Proc. R.S., 1905, p. 419.

page 674 note ║ Am. Journ. Sc., vol. iii., p. 449.

page 674 note ¶ Phil. Trans., 1889, A., p. 443.

page 674 note ** Magnetic Induction in Iron, 3rd ed., p. 209.