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The Arc SystemDiscovery of DavyVoltaic ArcElectric Light
The Induction CoilDetails of Construction of the Induction Coil
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adjusted alternating current amperes apparatus armature arranged attached battery binding posts brass brush camera carbon cell circuit clamped color commutator condenser conductor connected copper Crookes tube cylinder diaphragm direct current direction discharge disk distance dynamo edge effect electric electromotive force engraving experiment film flame frame glass heat hole illustrated inches in diameter induction coil induction motor inductor inserted instrument insulated iron lamp lantern length lens light liquid air means metal mould needle object operation opposite oscillations paper pass pendulum phonograph cylinder photographic photographic lens piece pivoted placed plate platinum position primary coils produced projecting rays receive resistance revolved rheostat ring rotary converter rotation rubber screen screw secured shown in Fig shows side slide soldered spark spool spring surface terminal thick tion transmitting tube turned upper vertical vibrations volts waves winding wire X rays