Three resistors having resistances mathrm{r}_{1}, mathrm{r}_{2} and mathrm{r}_{3} are connected as shown in the given circuit. The ratio frac{i_{3}}{i

Q: Three resistors having resistances $\mathrm{r}_{1}, \mathrm{r}_{2}$ and $\mathrm{r}_{3}$ are connected as shown in the given circuit. The ratio $\frac{i_{3}}{i_{1}}$ of currents in terms of resistances used in the circuit is :

b $I_{3}=\frac{I_{1} r_{2}}{r_{2}+r_{3}}$ $\frac{I_{3}}{I_{1}}=\frac{I_{1} r_{2}}{\left(r_{2}+r_{3}\right) I_{1}}=\frac{r_{2}}{r_{2}+r_{3}}$

SECTION - A [PHYSICS MCQ]

GSEB - English Medium

Three resistors having resistances $\mathrm{r}_{1}, \mathrm{r}_{2}$ and $\mathrm{r}_{3}$ are connected as shown in the given circuit. The ratio $\frac{i_{3}}{i_{1}}$ of currents in terms of resistances used in the circuit is :

A$\frac{r_{1}}{r_{2}+r_{3}}$
B$\frac{r_{2}}{r_{2}+r_{3}}$
C$\frac{r_{1}}{r_{1}+r_{2}}$
D$\frac{r_{2}}{r_{1}+r_{3}}$

NEET 2021, Easy

STD 11 Science
JEE
STD 12 - 3. current electricity
Physics

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	Length	Diameter	Potential difference
$(A)$	$L$	$3d$	$V$
$(B)$	$2L$	$d$	$2V$
$(C)$	$3L$	$2d$	$2V$

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