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Page 164
... lamp : how much heat will be required to melt it and vaporise the water completely ? 112. How many pounds of steam at 100 ° will just melt 50 pounds of ice at o ° ? 113. 10 gm . of steam at 100 ° is condensed in a kilo- gramme of water ...
... lamp : how much heat will be required to melt it and vaporise the water completely ? 112. How many pounds of steam at 100 ° will just melt 50 pounds of ice at o ° ? 113. 10 gm . of steam at 100 ° is condensed in a kilo- gramme of water ...
Page 192
... lamp as 9 to ( 12 ) 29 I ( 1 ) 2 or as I to ; i.e. as 144 to 9 , or as 16 to 1 . 9 144 2. How near to the screen would the lamp in Ex . I have to be moved in order to reverse the proportion , ¿ .e . to make the intensities of ...
... lamp as 9 to ( 12 ) 29 I ( 1 ) 2 or as I to ; i.e. as 144 to 9 , or as 16 to 1 . 9 144 2. How near to the screen would the lamp in Ex . I have to be moved in order to reverse the proportion , ¿ .e . to make the intensities of ...
Page 194
... lamp of 400 candle - power at a height of 16 ft . , and ( 2 ) by an arc lamp of 1000 candle - power at a height of 40 ft . 9. In determining the illuminating power of a gas- flame by Bunsen's photometer , the distance from the gas ...
... lamp of 400 candle - power at a height of 16 ft . , and ( 2 ) by an arc lamp of 1000 candle - power at a height of 40 ft . 9. In determining the illuminating power of a gas- flame by Bunsen's photometer , the distance from the gas ...
Page 260
... . 1. An incandescent lamp takes a current of 0.7 ampère , and the E.M.F. between its terminals is found to be 98 volts : what is its resistance ? Since C is expressed in ampères and E in volts CHAPTER XI CURRENT ELECTRICITY.
... . 1. An incandescent lamp takes a current of 0.7 ampère , and the E.M.F. between its terminals is found to be 98 volts : what is its resistance ? Since C is expressed in ampères and E in volts CHAPTER XI CURRENT ELECTRICITY.
Page 261
... lamp , in ohms , will be given by the equation R = E / C = 98 / 0.7 = 140 . 2. The E.M.F. of a battery ( or difference of potential between its poles on open circuit ) is 15 volts : when the poles are connected by a copper wire a ...
... lamp , in ohms , will be given by the equation R = E / C = 98 / 0.7 = 140 . 2. The E.M.F. of a battery ( or difference of potential between its poles on open circuit ) is 15 volts : when the poles are connected by a copper wire a ...
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acceleration amount of heat ampère angle atmospheric pressure B.Sc barometer battery body of mass Boyle's law C.G.S. units Calculate calorimeter Camb capacity cells centre charge circuit coefficient of expansion column conductor constant convex lens copper cubic centimetres cubical expansion Daniell cells deflection denote density diameter distance dynes electricity equal equation equivalent ergs feet per second Find the specific focal length foot-pounds ft.-lbs galvanometer given glass grammes grammes of water heat-units horizontal horse-power immersed inches internal resistance kilogramme lamp latent heat liquid litres magnetic Matric measured melted mercury metres per second miles minute object ohms piston placed plane pole poundals pounds produced Prove quantity radius raised ratio refractive refractive index Schol shunt specific gravity specific heat sphere steam string surface tangent galvanometer temperature tube vertical vibrations volts volume weight wire