St. John, Thomas M. (Thomas Matthew), b. 1865 · New York, T. M. St. John · leaf 49
46 PUSH-BUTTONS, SWITCHES AXD BINDING-POSTS. … Fig. 57- current will beobliged to pass through all thecoils A, B, etc.,before it can passout at Y. If Ebe mo\ed to 3,coils A and B ^villbe cut out of the circuit,thus decreasing the resist-ance to the current on itsway from X to V. Cur-rent regulators are madeupon this principle. (See Apparatus…
Electricity
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