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 264
a wire with cur- carrying rent going in. ;ion. Fig. 163. Uniform magneticfield. The magnetic field between thepoles of a strong magnet is practi-cally uniform and is represented by parallel lines of force(Fig. 163). DIRECT-CURRENT MOTORS 233 … Fig. 164. — Lines of force abouta wire carrying current in amagnetic field. If we put a wire with its circular field in the uniform fieldbetween the N and S poles of the magnet, the lines of forceare very much more crowded above the wire (Fig. 164) thanbelow. But we have seen in section 63 that we…
Electricity · Magnetism
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