The outlines of physics: an elementary text-book (1897)
Nichols, E. L. (Edward Leamington), 1854-1937 · New York, The Macmillan Company; London, Macmillan & Co., Ltd. · leaf 344
current in the outer coil indicated by these two deflections, andcompare this direction with that of the current due to the batterywithin the inner coil. It will be found that the direction ^current when the circuit is closed is opposite to that of the imand that when the circuit is broken the… … Fig. 297
Physics
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