In recent experiments, you found out that the voltages in a loop add up to zero. A voltage therefore only applies to your voltmeter, if it is located in a loop. This is a direct consequence of the Kirchhoff's Voltage Law. Therefore...
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Measuring Voltage To measure voltage, the voltmeter must be connected in parallel to the voltage to be measured! In order not to influence the measurement results, an ideal voltmeter has infinite internal resistance. |
Circuit measuring voltage. (Enlarge) |
Circuit diagram measuring voltage. |
In the next experiment, you introduce a capacitor into the circuit...
