The Students's textbook of electricity

action apparatus appearance armature arranged attraction axis ball bismuth brass cable carbon cells centre Chap charge chemical circuit coating coil communication conducting wire conductor connected copper copper wire cylinder deflection diamagnetic direction disc discharge distance earth effect elec electric current electrified electro-magnet electrode electrometer electromotive force electroscope equal experiments Faraday feet fixed galvanometer glass gutta-percha helix hydrogen inch in diameter increased induction instrument insulated intensity iron wire length letter lever Leyden jar light machine mercury metallic miles motion moved needle negative electricity nitric acid observed obtained opposite oxygen paper particles pass pendulum piece placed platinum platinum wire polarity pole positive electricity produced quantity of electricity ratchet-wheel resistance round screw shown in Fig soft iron solution spark square sulphate sulphuric acid surface suspended telegraph tension terminal tion tricity tube voltaic battery voltaic current wheel wire zinc zinc plate