The voltage and current drawn by a resistive load are measured with a 300 V voltmeter of accuracy ± 1% of full scale

Q. The voltage and current drawn by a resistive load are measured with a 300 V voltmeter of accuracy ± 1% of full scale and a 5 A ammeter of accuracy ± 0.5% of full scale. The readings obtained are 200 V and 2.5 A. The limiting error (in %) in computing the load resistance is (up to two decimal places) .

Ans: 2.49 – 2.53

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