GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Low resistance in series
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High resistance in series
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Low resistance in parallel
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High resistance in parallel
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Detailed explanation-1: -In order to convert a galvanometer to a voltmeter, a high resistance is connected to it in series. Since voltmeter can measure the potential voltage more accurately only with the help of high resistance. So, the correct option is D, high resistance in series.
Detailed explanation-2: -To convert a moving coil galvanometer to a voltmeter, we add a high series resistance, but why?. The high resistance causes most of the voltage to drop across it, leaving a small voltage drop across the galvanometer. This also ends up making the voltmeter have very high resistance.
Detailed explanation-3: -By joining a high resistance in series with the coil of galvanometer. It can be converted into voltmeter.
Detailed explanation-4: -2. A galvanometer is converted into a voltmeter when we connect a high resistance in series.
Detailed explanation-5: -A galvanometer of resistance G is converted into a voltmeter to measure up to V volts by connecting a resistance R1 in series with the coil. If a resistance R2 is connected in series with it, then it can measure up to V/2 volts.