A College Text-book of PhysicsH. Holt, 1911 - 692 pages |
From inside the book
Results 1-5 of 78
Page viii
... Coil and Telephone Electromagnetic Units .. Dynamo Electric Machines and Motors I. Direct Current Dynamos 491 493 496 501 504 504 II . Direct Current Motors 511 III . Alternating Currents 514 Alternating Current Motors 520 Electric ...
... Coil and Telephone Electromagnetic Units .. Dynamo Electric Machines and Motors I. Direct Current Dynamos 491 493 496 501 504 504 II . Direct Current Motors 511 III . Alternating Currents 514 Alternating Current Motors 520 Electric ...
Page 249
... coil of pure platinum wire with rise in temperature . ( $ 653 . ) A resistance thermometer consists of a coil of platinum wire mounted in a glass or porcelain tube to protect it from injury and contamination , and provided with ...
... coil of pure platinum wire with rise in temperature . ( $ 653 . ) A resistance thermometer consists of a coil of platinum wire mounted in a glass or porcelain tube to protect it from injury and contamination , and provided with ...
Page 270
... coil of wire immersed in the liquid . If the heat developed per second by the electric current is just the same in one case as in the other , and if the masses of liquid used in the two cases are such that the temperature rises at ...
... coil of wire immersed in the liquid . If the heat developed per second by the electric current is just the same in one case as in the other , and if the masses of liquid used in the two cases are such that the temperature rises at ...
Page 285
... coil contained in the box , is placed between two thin plates of the substance of which the conductivity is to be determined , say these are plates of glass . Outside of the glass plates are placed solid copper discs , so that each ...
... coil contained in the box , is placed between two thin plates of the substance of which the conductivity is to be determined , say these are plates of glass . Outside of the glass plates are placed solid copper discs , so that each ...
Page 306
... coils in a cold - storage room if the temperature is to be main- tained at 0 ° C. when 500 gram - calories of heat are flowing into the room per second ? II . How much heat in British thermal units is required to evaporate a pound of ...
... coils in a cold - storage room if the temperature is to be main- tained at 0 ° C. when 500 gram - calories of heat are flowing into the room per second ? II . How much heat in British thermal units is required to evaporate a pound of ...
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Common terms and phrases
acceleration alternating current amount ampères angular armature axis ball beam body Boyle's law bulb calorimeter carbon cause cell centimeter circuit coil color condenser conductor connected constant copper cord crystal curve density diagram difference of potential direction disc discharge displacement distance dynes earth electric electrode electromotive force electroscope energy equal equilibrium flow focal length friction galvanometer gases glass gram heat induction iron J. J. Thomson lens Leyden jar light lines of force liquid magnetic field mass measured mercury metal mirror molecules moment of inertia motion moving needle negative number of lines parallel particles pass pipe placed plane plate polarized pole positive charge pressure prism radiation rays reflected refracted resistance right angles rotation shown in figure side sound spectrum substance surface temperature tones tube vapor velocity vessel vibration volts volume wave length weight wire zinc
Popular passages
Page 275 - It is hardly necessary to add that anything which any insulated body or system of bodies can continue to furnish without limitation cannot possibly be a material substance ; and it appears to me to be extremely difficult, if not quite impossible, to form any distinct idea of anything capable of being excited and communicated in the manner in which heat was excited and communicated in these experiments except it be motion.
Page 574 - When a ray of light passes from one medium to another, it is refracted so that the ratio of the sine of the angle of incidence to the sine of the angle of refraction is equal to the ratio of the velocities in the two media.
Page 103 - The squares of the periodic times of the planets are proportional to the cubes of their mean distances from the Sun.
Page 118 - Archimedes stated that a body immersed in a fluid is buoyed up by a force equal to the weight of the displaced fluid.
Page 165 - We conclude that equal volumes of different gases at the same temperature and pressure contain equal numbers of molecules.
Page 7 - The straight line or distance between the centres of the transverse lines in the two gold plugs in the bronze bar deposited in the Office of the Exchequer...
Page 272 - Hypothesis states that equal volumes of gases at the same temperature and pressure contain equal numbers of molecules.
Page 22 - Change of momentum is proportional to the force and to the time during which it acts, and is in the same direction as the force; (3) To every action there is an equal and opposite reaction.
Page 32 - ... the perpendicular distance from the axis to the line of action of Axis FIG.
Page 179 - Kelvin has shown that if a drop of water were magnified to the size of the earth the molecules of water would be of a size intermediate between that of a cricket ball and of a marble.