Physics for High School Students |
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acid ampere angle armature ball battery body called carbon centimetre centre charge chromic acid cell circuit cm³ coil colors conductor connected copper wire crown glass cubic centimetre cylinder d'Arsonval density diameter direct currents direction discharge disk distance divergence dynes earth electric current electrified electrode electrolysis electromotive force electroscope energy equal Experiment external resistance flow friction galvanometer glass tube gravity heat helix Hence hydrogen increase induction induction coil insulated iron lamp length lens Leyden jar light lines of force liquid machine magnetic field mass mercury metal mirror mirror galvanometer motion needle negative Ohm's law ohms parallel pass pendulum piston plane plate platinum pole positive pressure prism produced rays reflected refraction scale screen shown in Fig sound surface suspended temperature tion velocity vertical vessel vibration voltaic cell volts volume waves weight zinc
Popular passages
Page 31 - Every body continues in its state of rest or of uniform motion in a straight line, except in so far as it may be compelled by impressed forces to change that state.
Page 31 - To every action there is always an equal and contrary reaction ; or the mutual actions of any two bodies are always equal and oppositely directed.
Page 339 - 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.
Page 105 - The pressure of a liquid on any surface immersed in it is equal to the weight of a column of the liquid whose base is the...
Page 343 - Under these conditions the strength of the current is proportional to the tangent of the angle of deflection.
Page 300 - The force of attraction or repulsion between two point charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them.
Page 109 - A solid immersed in a liquid is buoyed up by a force equal to the weight of the liquid displaced.
Page 44 - Every particle of matter in the universe attracts every other particle, with a force whose direction is that of the line joining the two, and whose magnitude is directly as the product of their masses, and inversely as the square of their distance from each other.
Page 336 - Grasp the coil with the right hand so that the fingers point in the direction of the current in the coil, FIG.
Page 341 - Such an electromotive force as would cause a current of one ampere to flow through a resistance of one ohm.