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Kirchhoff's Law
f-alpha.net » Physics » Electricity » Measuring Current-Voltage » Let's go... » Experiment 7 - Measure Correct Current

Experiment 7 - Correct Current Measurement

There are basically two circuits to connect two real measuring instruments in order to simultaneously measure the current and voltage across the load resistor RL...

Circuit diagram correct current measurement at a load resistor.

Circuit correct current measurement at a load resistor. (Enlarge)

In the correct current measurement, the ammeter shows the actual current through the load resistor RL. The voltmeter however shows the voltage across the series of RL and RiA and this is not the value you were looking for.

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