| VOLTAGE | ||
You now know that there are two types of current and voltage, that is, direct current and voltage and alternating current and voltage. If a graph is constructed showing the amplitude of a DC voltage across the terminals of a battery with respect to time, it will appear as shown in view A. The DC voltage is shown to have constant amplitude. However, some voltages alternate, and go through periodic changes in amplitude like those shown in view B. |
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