Elementary Lessons in Electricity & MagnetismMacmillan and Company, 1886 - 456 σελίδες |
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Σελίδα 15
... force of this repulsion against the force exerted by a fine wire in untwist- ing itself after it has been twisted . The torsion balance consists of a light arm or lever of shellac suspended within a cylindrical glass case by means of a ...
... force of this repulsion against the force exerted by a fine wire in untwist- ing itself after it has been twisted . The torsion balance consists of a light arm or lever of shellac suspended within a cylindrical glass case by means of a ...
Σελίδα 16
... force of repulsion becomes less and less as n gets farther and farther from m ; but the force of the twist gets greater and greater the more the wire is twisted . Hence these two forces will balance one another when the balls are ...
... force of repulsion becomes less and less as n gets farther and farther from m ; but the force of the twist gets greater and greater the more the wire is twisted . Hence these two forces will balance one another when the balls are ...
Σελίδα 17
... force of the repulsion was thirty - six times as great as the force required to twist the wire by 1o . The torsion - head was now turned round so as to twist the thread at the top and force the ball ʼn nearer to m , and was turned round ...
... force of the repulsion was thirty - six times as great as the force required to twist the wire by 1o . The torsion - head was now turned round so as to twist the thread at the top and force the ball ʼn nearer to m , and was turned round ...
Σελίδα 18
... force of attraction between two oppositely electrified bodies varies also inversely as the square of the distance between them . And in every case , whether of attraction or repulsion , the force at any given distance is proportional to ...
... force of attraction between two oppositely electrified bodies varies also inversely as the square of the distance between them . And in every case , whether of attraction or repulsion , the force at any given distance is proportional to ...
Σελίδα 76
... Force . — The force with which a magnet attracts or repels another magnet , or any piece of iron or steel , we shall call magnetic force.1 The force exerted by a magnet upon a bit of iron or on another magnet is not the same at all ...
... Force . — The force with which a magnet attracts or repels another magnet , or any piece of iron or steel , we shall call magnetic force.1 The force exerted by a magnet upon a bit of iron or on another magnet is not the same at all ...
Άλλες εκδόσεις - Προβολή όλων
ELEM LESSONS IN ELECTRICITY & Silvanus Phillips 1851-1916 Thompson Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2016 |
ELEM LESSONS IN ELECTRICITY & Silvanus Phillips 1851-1916 Thompson Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2016 |
ELEM LESSONS IN ELECTRICITY & Silvanus Phillips 1851-1916 Thompson Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2016 |
Συχνά εμφανιζόμενοι όροι και φράσεις
action ampères angle armature attracted ball battery bismuth carbon centimetres charge of electricity chemical circuit coil condenser conductor copper current flows Daniell's cells deflection diamagnetic dielectric difference of potential direction disc discharge distance earth earth's magnetism electric force electrified electrified body electrolytic electromagnet electrometer electromotive-force electroscope electrostatic equal Faraday galvanometer gramme heat Hence hydrogen instrument insulated internal resistance inverse iron kathode length Lesson Leyden jar light lines of force liquid magnetic field magnetic force magnetic pole magnetic potential magnetic shell magnetised measured metal move negative number of lines-of-force observed Ohm's law ohms oxygen pass piece placed plate platinum polarisation positive produced proportional quantity of electricity repelled repulsion rotation round rubbed shown in Fig spark sphere steel strength substances sulphuric acid surface tangent tangent galvanometer temperature torsion balance tube turns unit of electricity vibrations voltaic volts zinc
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Σελίδα 52 - These are admirable books, because they are constructed on a principle, and that the simplest principle on which it is possible to learn to read English.
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Σελίδα 33 - AN ELEMENTARY TREATISE ON THE LUNAR THEORY, with a Brief Sketch of the Problem up to the time of Newton. Second Edition, revised. Crown 8vo. $s. 6d. HEMMING— AN ELEMENTARY TREATISE ON THE DIFFERENTIAL AND INTEGRAL CALCULUS, for the Use of Colleges and Schools.
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Σελίδα 17 - Prize Essay for 1877. 8vo. &r. 6d. SMITH— Works by the Rev. BARNARD SMITH, MA, Rector of Glaston, Rutland, late Fellow and Senior Bursar of St. Peter's College, Cambridge. ARITHMETIC AND ALGEBRA, in their Principles and Application ; with numerous systematically arranged Examples taken from the Cambridge Examination Papers, with especial reference to the Ordinary Examination for the BA Degree.