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A Laboratory Manual of Physics and Applied Electricity, Том 2
Edward Leamington Nichols
Повний перегляд - 1898
A Laboratory Manual of Physics and Applied Electricity
Edward Leamington Nichols
Повний перегляд - 1923
abscissas accurate adjust angle apparatus axis battery body cell charge circuit closed coil computed conductor connected consists constant containing correction corresponding curve deflection density determined direction displacement distance divided electricity equal equation error example experiment fall flowing follows four friction galvanometer give given glass harmonic heat indicated inertia intensity known least length light lines of force liquid machine magnet mass means measured mercury method motion moving nearly necessary needle object observations obtained passing pendulum period physical placed platted position possible potential pressure probable produced proportional quantity ratio readings relation Repeat represented resistance respect reversed scale shown side simple specific gravity squares straight substance surface suspended taken telescope temperature tion tube turned unit values varied vertical vibration volume weight wire
Сторінка 293 - AIRY.— Works by Sir GB AIRY, KCB, formerly Astronomer-Royal. ON SOUND AND ATMOSPHERIC VIBRATIONS. With the Mathematical Elements of Music. 2d Ed., revised and enlarged. Cr. 8vo. 9s. A TREATISE ON MAGNETISM. Cr. 8vo. 9s. 6d. GRAVITATION : an Elementary Explanation of the Principal Perturbations in the Solar System.
Сторінка 153 - Ampere, which is one-tenth of the unit of current of the CGS system of electromagnetic units and which is represented sufficiently well for practical use by the unvarying current which, when passed through a solution of nitrate of silver in water, in accordance with a certain specification, deposits silver at the rate of 0.001118 of a gramme per second.
Сторінка 203 - As a unit of resistance, the international ohm, which is based upon the ohm equal to 10" units of resistance of the CGS system of electromagnetic units, and is represented by the resistance offered to an unvarying electric current by a column of mercury at the temperature of melting ice, 14.4521 grams in mass, of a constant cross-sectional area and of the length of 106.3 centimetres.
Сторінка 154 - The liquid should consist of a neutral solution of pure silver nitrate, containing about 15 parts by weight of the nitrate to 85 parts of water. The resistance of the voltameter changes somewhat as the current passes. To prevent these changes having too great an effect on the current, some resistance besides that of the voltameter should be inserted in the circuit.