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Q. A moving coil instrument having a resistance of 10 Ω, gives a full-scale deflection when the current is 10 mA. What should be the value of the series resistance, so that it can be used as a voltmeter for measuring potential difference up to 100 V? (A) 9 Ω (B) 99 Ω (C) 990 Ω (D) 9990 ...
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