Electricity and magnetism : an elementary text-book, theoretical and practical (1920)
Glazebrook, Richard, Sir, 1854-1935 · Cambridge : The University press · leaf 252
at of the coil connecting A and £. The coils in a box are usually arranged thus: 12 2 5 10 10 20 50 100 100 200 500 units. Thus Avith twelve coils as shewn any resistance between0 and 1000 ohms can be inserted in the circuit. In some boxes the coils are arranged in powers of 2 thus,1, 2, 2^, 2^...… … Fig. 153. A series of eleven brass studs are arranged in an arc ofa circle. The consecutive studs are connected by a series of10 equal resistance coils and by means of a plug each can beconnected in turn to a block at the centre of the circle. Theconnexions to the rest of the circuit are made at…
Electricity · Magnetism
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
