> Q. A galvanometer of resistance 10 $ Omega $ gives full-scale deflection when 1 mA current passes through it. The resistance required to convert it into a voltmeter reading upto 2.5 V is – LIVE ANSWER TODAY

Q. A galvanometer of resistance 10 $ Omega $ gives full-scale deflection when 1 mA current passes through it. The resistance required to convert it into a voltmeter reading upto 2.5 V is

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A galvanometer of resistance 10 $ Omega $ gives full-scale deflection when 1 mA current passes through it. The resistance required to convert it into a voltmeter reading upto 2.5 V is

Solution:

Required series resistance $ R=frac{V}{{{I}_{g}}}-G $ $ =frac{2.5}{1times {{10}^{-3}}}-10 $ $ =2490,Omega $

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