Discussion :: Measurements and Instrumentation
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In measuring a resistance by voltmeter-ammeter method, the voltmeter can be connected either across supply or across the resistance. If the resistance is low, the voltmeters should be connected
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A.
across the supply
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B.
across the resistance
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C.
either in two positions
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D.
preferably across the supply
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Answer : Option B
Explanation :
Since resistance is low current is high and voltage drop across ammeter is high. Therefore, voltmeter should be connected across resistance.
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