St. John, Thomas M. (Thomas Matthew), b. 1865 · New York, T. M. St. John · leaf 76
thecoil adts very much like a magnet,although no iron enters into itsconstrudlion. The coil becomesmagnetized bj the eledtric cur-rent, lines of force pass from itinto the air, etc. Fig. 94 shows acoil connecfted to copper and zincplates, so arranged with cork thatthe whole can float in a dish… … Fig- 93- 74 MAGNETIC EFFECTS OF ELECTRIC CURRENT. Rule. When you face the right-hand end of the coil,the current is seen to pass around it in an anti-clockwisediredlion; this produces a N pole. When the currentpasses in a clockwise direcftion a S pole is produced. 96. Electromagnets.A coil of wire…
Electricity
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