A laboratory manual in physics, to accompany Black and Davis' "Practical physics for secondary schools," (1913)
Black, Newton Henry, 1874- [from old catalog] · New York, The Macmillan company · leaf 97
volt-meter ( F) in shunt with the lamp as shownin the Fig. 51. Stir the water and note itstemperature and then turn on the current atS) noting precisely the time of doing so. Allow the water to be heated about asmuch above the room temperature as itstarted below, stirring continually. In… … Fig. 51 HEATING EFFECT OF AN ELECTRIC CURRENT 83 Observations Weight of beaker and stirrer . .Weight of beaker, stirrer, and waterTemperature of water at start .Time of start (hr. min. sec.)Temperature of water at finishTime of finish (hr. min. sec.) . Volts Amperes g-g- °C. Calculated Results…
Physics
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