cs. induction, which has made all modern electrical enter- The self-exciting Geissler tube is a beautiful object in prises possible. Faraday reasoned, that since the cir- a dark room. The electrical effect is produced by the culation of an electric current in a wire coil surround- friction of… … in a brass puptt cent electric motob. which an arma- SELP-EXCITING GEISSLER TUBE. cross pieCe ture adheres to a attached to the poles of the magnet. The armature tube is ingeniously contrived to prevent breakage by MAGNETIC CURVES. magnet. The consists of a cross arm of soft iron wound with four or…
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