An elementary book on electricity and magnetism and their applications (1919)
Jackson, Dugald C. (Dugald Caleb), 1865-1951, Jackson, John Price, b. 1868, Black, Newton Henry, b. 1874 · New York, The Macmillian Co · leaf 118
Fig. 52. — Effect of mag-net on flexible wire car-rying electric current. ELECTROMAGNETISM 95 to unwind and then rewind around the magnet in the reverse manner,thus again bringing the two magnetic fields into parallelism. Instead of the steel magnet, the fixed magnet in this experimentmay he a… … Iron Core 69. Electromagnets. When a coil of wire (i.e., a solenoid)is wound around a piece of soft iron or steel for the purpose ofgetting a magnetic field, the combinationis called an electromagnet. A piece of hardsteel might be usedinstead of soft iron,but in this case theamount of…
Electricity · Magnetism
Internet Archive · Public Domain Mark 1.0. Free to use for anything.