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The potential gradient on wire PQ is 10–5 V then the reading of voltmeter is -(1) 3 mV(2) 5 mV(3) 7 mV(4) 9 mV |
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Answer» The correct option is (2) 5 mV. Explanation: Reading = Potential gradient x length = 0.01 x 0.5 = 5 x 10-3 V = 5 mV |
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