# A multi range voltmeter can be constructed by using a galvanometer circuit as shown in the figure. We want to construct a voltmeter that can measure $2V,20V$ and $200\;V$ using a galvanometer of resistance $10\Omega$ and that produces maximum deflection for current of $1mA$ Find $R_1,R_2$ and $R_3$ that have to be used
$\begin{array}{1 1} 18\;K\;\Omega \\ 180\;K\;\Omega \\ 1800\;K\;\Omega \\ 1.8 \; \Omega \end{array}$