Easy electrical experiments and how to make them; (1918)
Dickinson, Leonard Perley, 1874- [from old catalog] · Chicago, F. J. Drake & co · leaf 42
hrough the system described,expressed in cu. ft. per second, is very similar in its significanceto the term strength of current in an electrical circuit EASY ELECTRICAL EXPERIMENTS. 33 CHAP. IX —HOW TO MAKE A 1-20 H. P. MOTOR. THE ARMATURE AND COMMUTATOR. If the directions given in the last paper… … ARMATURE-AND COMMUTATOR COMMUTATOR
Electric apparatus and appliances · Electricity
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