Why is potentiometer known as a ideal voltmeter 2?
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As we know that we have to connect voltmeter in parallel to any element to know the voltage across it
So while connecting voltmeter to any circuit we are indirectly providing another path for current to flow from,which in turn change the actual current flowing from desired path and this creates error in measuring of voltage
But if we connect the voltmeter with infinite resistance (ideally),no current can flow from the voltmeter and there will be zero error in the measured voltage.
So while connecting voltmeter to any circuit we are indirectly providing another path for current to flow from,which in turn change the actual current flowing from desired path and this creates error in measuring of voltage
But if we connect the voltmeter with infinite resistance (ideally),no current can flow from the voltmeter and there will be zero error in the measured voltage.
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