Brechner, Claude H., 1887- [from old catalog] · Boston, New York [etc.] Allyn and Bacon · leaf 197
Figure 188.—Wiring Diagram Showing where Ammeter andVoltmeter are Placed. a ray of light may be deflected), showing the amount ofdeflection. 220. The Ammeter. — The galvanometer detects currentflowing, and its relative value, but does not give its amountin amperes. … Figure 189. — Photograph of a Voltmeter with the Cover Removed. THE VOLTMETER 187 When the galvanometer has its scale graduated in amperes,it is called an ammeter. Its principle is just the same as thegalvanometer, but reads directly in amperes. The resistance of the coil in an ammeter is wry low,…
Physics
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