t by the act of to Fig. 10, we will call the direction of moving the north pole N towards a wire the current round the circuit in that ring, which is in this case connected with figure the positive direction; and to de- a httle detector galvanometer G. The fine this direction we may remark that if… … magnet were pushed up toward the cir- front ) in the same sense as the move- cuit, the current in the circuit would be ments of the hands of a clock. The in- momentarily reduced in strength, the duced current which results from the decrease in strength in the current being motion is found, then, to…
Engineering
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![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten20unit-367-156.webp)
