Brechner, Claude H., 1887- [from old catalog] · Boston, New York [etc.] Allyn and Bacon · leaf 199
UCING EFFECT OF CURRENT The resistance of the voltmeter is made very high; so itshould be placed across, not in, the line (V, Figure 188). This resistance is made up of the resistance of the mov-able coil of the instrument. When a high resistance is desiredfine wire with a large number of turns is… … 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…
Physics
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