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acts angle applied atmosphere attached ball body called caused centre charge circle closed coil colors column conductor connected constant copper cylinder density diameter direction distance draw earth effect electric energy equal Experiment fall figure Find force friction give given glass gravity heat Hence hour illustrates increase iron known length lens less light liquid machine magnet mass matter means measured mercury motion moving object parallel passes pendulum piece piston plane plate pole position pressure produced pump rays reading reflected represent resistance rest resultant rise scale screen shown shows side sound square string surface temperature tension tion tube turn unit velocity vertical vessel vibration volume wave weight wheel wire
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 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.