# Please answer this : 2.  Consider an infinite ladder network shown in figure. A voltage is applied between points A and B. If  the voltage is halved after each section, fine the  ratio $\frac{{R}_{1}}{{R}_{2}}.$

Dear Student,
Let current I  enters trough A and it will be get divided in  two equal parts means I/2
means current through R2 is I/2
according to question
$I{R}_{1}=I/2{R}_{2}\phantom{\rule{0ex}{0ex}}\frac{{R}_{1}}{{R}_{2}}=\frac{1}{2}$
Regard

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