Merchant, F. W. (Francis Walter), 1855-1937, Fessenden, Cortez, b. 1852 · Toronto : Copp, Clark · leaf 320
yits power to lift pieces of soft iron. Why should a magnet of this kind be more powerful than twoseparate magnets with the same current passing through them ? 6. Uses of Electro-Magnets. Electro-magnets are used in many of the importantapplications of electricity. How May an Electro-Magnet be Used… … 1 A small hand drill and a small tap with machine screws to correspond should be apart of the equipment of every laboratory. No. 6, 32 is the most convenient size ofmachine screw. 2 For manual training exercise, see Appendix, page 332. 312 PHYSICAL SCIENCE.
Physics
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