Essentials of physicsW.B. Saunders, 1896 - 319 pages |
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Page 262
... action on a magnetic needle . Place a current in the magnetic meridian and let it pass over a needle . The needle will tend to take up a position which is more nearly at right angles to the magnetic meridian in pro- portion as the ...
... action on a magnetic needle . Place a current in the magnetic meridian and let it pass over a needle . The needle will tend to take up a position which is more nearly at right angles to the magnetic meridian in pro- portion as the ...
Page 263
... action of the earth on the needle an astatic system is used ( Fig . 123 ) , and the action of the current is now the only agent of deflection . The complete instrument is seen at G in Fig . 48. A brass plate revolves upon one beneath it ...
... action of the earth on the needle an astatic system is used ( Fig . 123 ) , and the action of the current is now the only agent of deflection . The complete instrument is seen at G in Fig . 48. A brass plate revolves upon one beneath it ...
Page 323
... action depends on the alterations in the resistance of Se produced by the action of light , and these alterations produce articulate sounds in the telephone . How are thermo - electric currents produced ? Thermo - electricity is ...
... action depends on the alterations in the resistance of Se produced by the action of light , and these alterations produce articulate sounds in the telephone . How are thermo - electric currents produced ? Thermo - electricity is ...
Contents
BOOK I | 17 |
The Attractions of Matter | 26 |
Matter Force and Motion | 33 |
37 other sections not shown
Common terms and phrases
acid ampères angle aperture armature attraction axis barometer battery body called camera carbon cell chemical ciliary muscle circuit coil collodion colors concave condensing conductor connected containing convex convex lens cornea crystalline lens Describe direction disk dynamo electricity electro-magnet electrolysis eye-piece film focus force galvanometer gases gelatin glass gun-cotton H₂SO heat heliostat hydrometer induced currents induction instrument intensity iron Jefferson Medical College Leclanché cell lens lenses Leyden jar light liquid luminous machine magnet magnified Medical metal microscope mirror molecules motion needle negative object optic paper paper negatives parallel passes Philadelphia picture placed platinum polarized pole presbyopia pressure principle prints prism produced quantity rays reflected refraction resistance retina silver solid sound spectrum Spherical aberration substances surface Surgery telescope temperature Text-Book thermometer tion transmitted tube vapor velocity vessel vibrations vitreous humor voltaic volume weight wire