Lessons in Practical Electricity, Principles, Experiments, and Arithmetical Problems

alternating current ammeter ampere-hours amperes bar magnet battery binding posts brushes carbon circular mil commutator conductor connected in series copper wire counter E. M. F. cuit current flows current strength Daniell cell deflection diameter direct current direction of current disc distance dynamo electrical electromagnet electromotive force energy equal external circuit field magnets Formula galvanometer heat incandescent lamp inch increased indicated induced current induced E. M. F. induction coil insulation internal resistance iron core length lines of force machine magnetic field magnetic lines magnetised measured metallic motor movable coil move N-pole needle number of lines Ohm's Law ohms opposite plate platinum polarity pole position potential difference pounds pressure primary Prob produced reactance rent rheostat rotation secondary self-induction shown in Fig sketch solenoid spark speed spool square switch temperature terminals tion tube unknown resistance voltage voltmeter watts Wheatstone Bridge wound zero zinc