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PhysicsNEET 2021Kirchhoff's rules, Wheatstone bridge, potentiometer

Current Electricity

Three resistors having resistances r1r_1, r2r_2 and r3r_3 are connected as shown in the given circuit. The ratio i3i1\dfrac{i_3}{i_1} of currents in terms of the resistances used in the circuit is:

Question 38 as printed in the NEET 2021 booklet

  1. A.r1r2+r3\dfrac{r_1}{r_2 + r_3}
  2. B.r2r2+r3\dfrac{r_2}{r_2 + r_3}✓
  3. C.r1r1+r2\dfrac{r_1}{r_1 + r_2}
  4. D.r2r1+r3\dfrac{r_2}{r_1 + r_3}

You have the answer. The worked solution — and why the other three were written — is part of a paid pack.

More from this chapter in past papers

From Physics › Current Electricity › Kirchhoff's rules, Wheatstone bridge, potentiometer — lectures, notes and every past question on it.

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