A text book of physics, for the use of students of science and engineering (1918)
Duncan, John, d. 1941, Starling, Sydney George, 1873- · London Macmillan · leaf 905
FIG. 814.—Standard ohm coil. 880 MAGNETISM AND ELECTRICITY CHAP. … -Arrangement of the coils in aresistance box. Resistance boxes.—It would be very inconvenient in experimentalwork if the resistances employed had to be made up of coils of the form shown in Fig. 814. Theyare therefore joined togetherin boxes. Each coil is woimdupon a bobbin B (Fig. 815)attached to…
Physics
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