I.C.S. reference library : a series of textbooks prepared for the students of the International Correspondence Schools and containing in permanent form the instruction papers examination questions, and keys used in their various courses (1904)
International Correspondence Schools · Scranton : International Textbook Co. · leaf 407
r suspension, as shown by F inFig. 32. In the simpler forms of galvanometers, the mag-netic needle itself swings over a dial graduated in degrees; in other forms, a light indexneedle is rigidly attached tothe magnetic needle and swingsover a similar dial, as indicatedby / in Fig. 32; and in themore… … §8 ELECTRICITY AND MACxNETISM 29 In any of these galvanometers, wlien no current is flowingin the coils, the needle should ])oint in a direction parallel tothe length of the coil. Fig. 34. The measuring of currentsby most galvanometers depends upon the magnetic needlebeing held in this position by…
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