Brechner, Claude H., 1887- [from old catalog] · Boston, New York [etc.] Allyn and Bacon · leaf 42
connections are made as shown in the figure. The battery(Bat.) is placed in the circuit, together with two magnets(Mi and i¥2). The thermostat is placedin the room, the temperatureof which is to be regulated,and the magnets (Mi andM2) are placed in the base-ment. The wires lead fromthe thermostat…
Physics
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