The power in a resistor R is estimated by measuring the

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The power in a resistor R is estimated by measuring the voltage and current using the voltmeter-ammeter method. Two different arrangements can be used as shown in circuits I and II. Less erroneous results are obtainted by adopting:

1. circuit I for low values of R
2. circuit II for low values of R
3. circuit I for high values of R
4. circuit II for low values of R

Correct Option: A

NA