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25 German silver ammeter angle Answer the following ball bottle brass bridge-wire calculate cells in series circuit coal-oil compass compass-needle concave lens Connect constant copper cord Current flowing north DALTON'S LAW Daniell cell degree in temperature diameter direction draw dynes earth's magnetic field effect electric current electrical resistance ELECTRO-MAGNETIC electromotive force equal ether Exercise galvanometer gas jets gasoline vapor German silver wire glass gramme horizontal inclosed air index of refraction induced current integral power inverted iron filings lens liquid mass Measure the distance mercury column metal metre mirror needle north pole Ohm's law ohms paper paraffine parallel pendulum perpendicular Place plane position principal focal length PRINCIPLE OF MOMENTS proportional read the balances read the current rectangle Repeat the measurements rheostat shot side solution specific heat surface tension Take unit of heat velocity of sound vertical vibration voltameter volume weight
Page 49 - The index of refraction is equal to the ratio of the sine of the angle of...
Page 13 - If the radii, of the tube, and of the basin, of a barometer, be 1 and 3 ; and the index shews, at sight, the height of the mercury in the tube, above that in the basin ; prove that the inch upon the scale : a real inch :: 8 : 9, the thickness of the tube being neglected.
Page 60 - ... pole of such strength that it will exert a force of one dyne upon an equal pole at a distance of one centimeter in air.
Page 23 - Specific Heat. The specific heat of a substance is the ratio of the heat required to raise the temperature of unit weight of the substance 1 deg.
Page 64 - Reverse the magnet and repeat the measurements of (a). (c.) Repeat (a) and (b) with the magnet on the other side of the compass-needle. II. (a.) Suspend a carriage for the magnet by two fine parallel wires of equal length, adjustable from above, so that they are east and west of each other. Place a brass rod of about the same size as the magnet in the carriage and carefully draw a line parallel to the rod on a piece of paper placed underneath it. Remove the brass rod and place the magnet in the carriage....
Page 49 - For one and the same medium, and the same ray of light, the ratio of the sine of the angle of incidence to that of the angle of refraction is a constant quantity for the same medium and the same ray.
Page 33 - Two equal, parallel forces in opposite directions constitute what is called a couple. The perpendicular distance between them is called the arm of the couple.
Page 14 - ... in a tube over mercury or water, and the level of the liquid inside the tube is higher than that outside, the gas is under diminished pressure, the amount of diminution depending on the height of the column of mercury or water in the tube. Thus, if the arrangement be as represented in Fig.