Q. A circuit contain two resistors $R_{1}$ and $R_{2}$ in series. Find the ratio of input voltage to voltage to $R_{2}$
JIPMERJIPMER 2019
Solution:
Input voltage, is voltage across $\left(R_{1}+R_{2}\right)$, is given by,
$V=i\left(R_{1}+R_{2}\right)$
$V_{\text {Oltage across }} R_{2}=i . R_{2}$
So $\Rightarrow \frac{V_{i \text { input }}}{V_{R_{2}}}=\frac{\left(R_{1}+R_{2}\right)}{-\left(R_{2}\right) \cdots}$
