/1/104772/coverorgin.jpg?v=6cfd8a0f3d962cc59facc5814727a073&imageMogr2/format/webp)
its modern uses possible.--The universal wire.--Conductors and
non conductors.--Electricity an exception in the ordinary Laws
of Nature.--A dual nature: "Positive" and "Negative."--All
modern uses come under the law of Induction.--Some of the laws
of this induction.--Magnets and Magnetism.--Relationship between
the two.--Magnetic "poles."--Practical explanation of the action
/0/15210/coverorgin.jpg?v=b9d263e651bec9b20a424485b5cfcda3&imageMogr2/format/webp)
/0/68183/coverorgin.jpg?v=826938fa2d6147a359ff89b8580da6c0&imageMogr2/format/webp)
/0/46997/coverorgin.jpg?v=f2aba0b4c16c4ac7ab38e1e6ea898496&imageMogr2/format/webp)
/0/16043/coverorgin.jpg?v=2dfd2fa705f9d9ffb034f33dc2c7ae61&imageMogr2/format/webp)
/0/87464/coverorgin.jpg?v=b2845aeaf7d9b4bf52790181153841bf&imageMogr2/format/webp)
/0/15397/coverorgin.jpg?v=a7e142e255870fbaa1f6375f912a79bc&imageMogr2/format/webp)
/0/71423/coverorgin.jpg?v=b8316ab0e5950ea22d400fd9ee1abc50&imageMogr2/format/webp)
/0/85482/coverorgin.jpg?v=1f3479384bf52bbcf184162f00d7359e&imageMogr2/format/webp)
/0/37404/coverorgin.jpg?v=4307771d18f02b1f723d8a06b0ccdb26&imageMogr2/format/webp)
/0/59456/coverorgin.jpg?v=910885853fd5828b262dbc6426f79679&imageMogr2/format/webp)
/0/83837/coverorgin.jpg?v=41ed758ccf4132c8c9c6c2741080e73c&imageMogr2/format/webp)
/0/84554/coverorgin.jpg?v=5a4122492fdd0aa108c133971bcbf09a&imageMogr2/format/webp)
/0/38733/coverorgin.jpg?v=b7102d96032111032bc9fff8b3288177&imageMogr2/format/webp)
/0/40599/coverorgin.jpg?v=03395c32a790108e519600a3694c433e&imageMogr2/format/webp)
/0/63112/coverorgin.jpg?v=382b27abf86bf0a66899eacfe78be1fa&imageMogr2/format/webp)
/0/42968/coverorgin.jpg?v=402eabb360848600172f65fd24a0ab15&imageMogr2/format/webp)
/0/90193/coverorgin.jpg?v=3230fae44b8141841fff35ec1b6cb80f&imageMogr2/format/webp)