Q31 A galvanometer of resistance G is converted into a voltmeter to measure up to V volt, by connect
Автор: physics spc sandeep sir
Загружено: 2025-08-30
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Q31 A galvanometer of resistance G is converted into a voltmeter to measure up to V volt, by connecting a resistance R1 in series with the coil . If R1 is replaced by R2 , then it can only measure up to V/2 volt . Find the value of resistance R3 ( in term of R1 and R2 ) needed to convert it into a voltmeter that can read up to 2V volt . [ Class 12 Physics CBSE board 2025 paper Set 3 Code 55/7/3 Solution ]
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