Calendar: 1887-1888 Page 677

APPLIED SCIENCES 681 State the laws of the production and distribution of heat in galvanic circuit Explain how to determine the constant of galvanometer by the heat generated in given time in wire of given resistance in the circuit Explain how bar magnet may be made to produce an electric current in neighbouring wire flat circular coil of wire is caused to rotate about an axis which is vertical diameter of the circle Explain any electrical effect which may be induced in the wire by the earth's magnetic action magnet is suspended centrally above horizontal copper disc which is capable of being rotated about vertical axis explain the effect produced upon the magnet by causing the copper disc to rotate f&irtrostatica an at block of stone ft long ft broad and ft thick is lowered by rope so as to hang freely suspended and com- pletely immersed in water which when the block is in it just fills cubical tank each of whose sides is ft long The specific gravity of the stone being determine the tension of the rope Determine also the diminution of pressure on each of the four sides of the tank and on its base which would be produced by removing the block from the water Describe and explain the action of Bramah's hydrostatic press Explain by the aid of diagrams the actions of the י com- mon pump the 'lifting pump י and the forcing pump Enunciate Torrieelli's law respecting the velocity of flow of liquid from an orifice and shew how this law follows from the principle of conservation of energy The volume of gas varies directly as the absolute temperature and inversely as the pressure Explain clearly the meaning of this statement Two globes of equal mass and capacity when filled with air counterpoised each other on balance placed at