Brechner, Claude H., 1887- [from old catalog] · Boston, New York [etc.] Allyn and Bacon · leaf 200
Figure 191. — The Movable Coil and Pointer of a Voltmeter. across the line, it will be burned out. Should you place thevoltmeter in the line, it will shut off almost all the current. 222. The Wattmeter. — The wattmeter is an instrumentmade to read the power used in a line. It consists of two THE… … Figure 192. — A Volt-ammeter which can be used as either a Voltmeter or an Ammeter. The metal binding posts are ammeter connections, and the rubberones are voltmeter connections. sets of coils. One set takes the place of the permanentmagnets in the ammeter, voltmeter, and galvanometer, and theother…
Physics
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