Gage, Alfred P. (Alfred Payson), 1836-1903 · Boston, London, Ginn · leaf 581
ommonly anelectro-magnet, is called thefield magnet, and our coil orseries of coils of wire, whichis generally made to move infront of the poles of the fieldmagnet, is called the armature.The armature is that part ofthe electric circuit in whichthe induced current is gene-rated. Like the battery,… … Fia. 450. THE DYNAMO. 561 density of the lines of force varies, as represented in Fig.450; or (2) by rotating the plane of the circuit so as to changethe angle which it makes with the line of force, thus increasingor decreasing the number which the circuit encloses (Fig. 443).The former of these…
Physics
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