Verified Solution • 2025–26 Session moderate

QNEET-2021-Ph-646: NEET 2021 Physics - Class 12 NEET-2021-Ph-646 Solution: Three resistors having resistances \(r_1 r_2\) and \(r_3\) are…

Three resistors having resistances r1r2r_1 r_2 and r3r_3 are connected as shown in the given circuit. The ratio i1i3\frac{i_1}{i_3} of currents in terms of resistances used in the circuit is: r2r1+r3\frac{r_2}{r_1+r_3} r1r2+r3\frac{r_1}{r_2+r_3} r2r2+r3\frac{r_2}{r_2+r_3} r1r1+r2\frac{r_1}{r_1+r_2}

Multiple Choice Options

  • A r2r1+r3{{{r_2}} \over {{r_1} + {r_3}}} r 1 _ + r 3 _ r 2 _ _
  • B r1r2+r3{{{r_1}} \over {{r_2} + {r_3}}} r 2 _ + r 3 _ r 1 _ _
  • C r2r2+r3{{{r_2}} \over {{r_2} + {r_3}}} r 2 _ + r 3 _ r 2 _ _
  • D r1r1+r2{{{r_1}} \over {{r_1} + {r_2}}} r 1 _ + r 2 _ r 1 _ _

Step-by-Step Verified Solution

I 3 = I 1 r 2 r 1 + r 3 I 3 I 1 = I 1 r 2 ( r 2 + r 3 ) I 1 = r 2 r 2 + r 3

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