$100\,mA$ current gives a full scale deflection in a galvanometer of $2\,\Omega $ resistance. The resistance connected with the galvanometer to convert it into a voltmeter to measure $5\,V$ is ............... $\Omega $
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 $R = \frac{V}{{{i_g}}} - G = \frac{5}{{100/{{10}^3}}} - 2$$ = \frac{{5000}}{{100}} - 2 = 48\,\Omega $
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