A Textbook of Electric Lighting and Railways, Volume 1

alternating current amount amperes armature bars belt body cell cent cipher coiled conductor commutator conductor connected copper core current flowing current in amperes decimal places deflection denominator diameter difference of potential direction distance divided divisor driven wheel driving dynamo electricity electromotive force equal external circuit feet field coils field magnets figure formula fraction galvanometer gear gear-wheel given Hence horsepower input insulation iron length lines of force load loss machine magnetic field minuend motor move multiply number of lines number of revolutions number of teeth obtained Ohm's law ohms open circuit pass pole pieces position pounds pulley quotient r₁ ratio represent revolutions per minute rheostat right angles root rotated rule screw series coils shaft short-circuited shown in Fig shunt coils side SOLUTION sparking speed strength of current terminals tion velocity voltage voltmeter volts watts weight whole numbers wire