ELECTROMAGNETISM

Natural magnet with case Magnetic inclination compass Magnetometer Magnetoscope Little double electroscopic pendulum Electroscopic pendulum Insulated brass disk Insulated metallic conductor Pointed brass conductor Electric ring Electric revolver Leyden jars Battery of four Leyden jars Spinterometer with spherical small bottle Brass Volta’s pistol Varnished sheet iron Volta’s pistol Volta’s eudiometer Braun electrometer Quadrant electrometer according to Dolezalek Lutz-Edelmann electrometer Perucca electrometer with light source and scale Apparatus for electrochemical experiments Grenet cell Legal Ohm standard Seebeck apparatus with astatic needle Thermoelectric cell Apparatus for Oersted experiments Schweigger multiplier Tangent compass Moving-needle galvanometer

Nobili galvanometer Thomson galvanometer Vertical galvanometer Deprez-D’Arsonval galvanometer Ammeter Voltmeter with 3-150 Volt scale Weston voltmeter Milliamperometer Arago disk with rotation apparatus Apparatus for the rotation of a magnet Rotation and vibration apparatus Pacinotti’s dynamoelectric engine Switch Induction coil Foucault switch Electro-physiological Froment coil Electric egg Glass bell for electro-luminescent experiments Geissler tubes Braun cathode ray tube Vacuum Crookes tube X-Ray tube Muller-Metro tube Bell telephone Hughes microphone Microphone Relais Biased relais