Electrical instruments and testing; how to use the voltmeter, ohmmeter, ammeter, potentiometer, galvanometer, the Wheatstone bridge, and standard portable testing sets (1907)
Schneider, Norman H. (Norman Hugh), Hargrave, Jesse · New York, Spon & Chamberlain; [etc., etc.] · leaf 112
Fig. 62. 90 ELECTRICAL INSTRUMENTS. equal 100 ohms and commutator be set as in figure.100 ohms in arm B divided by 10 ohms in arm B = 10. Divide rheostat by 10, — - 10 ohms. But let commutator be set in direction of arrow H. Then same example, -— = 10, 100 ohms in rheostat X 10 = 1000 ohms. The…
Electric testing · Electric apparatus and appliances
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
