In the given figure switches S1 and S2 are in open condition. The resistance across ab when the switches S1 and S2 are closed is Ω.

Question

In the given figure switches S1 and S2 are in open condition. The resistance across ab when the switches S1 and S2 are closed is Ω. (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

when switch S1 and S2 are closed <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/physics/80bdc607309a284ac89af4c2c9f1bb9b-.png" /> (12 × 6/12+6)+2+(6 × 12/6+12) (72/18)+2+(72/18)=4+2+4=10 Ω

Q. In the given figure switches $S_{1}$ and $S_{2}$ are in open condition. The resistance across ab when the switches $S_{1}$ and $S_{2}$ are closed is _______ $Ω$ .

when switch $S_{1}$ and $S_{2}$ are closed

$\frac{12 \times 6}{12 + 6} + 2 + \frac{6 \times 12}{6 + 12}$
$\frac{72}{18} + 2 + \frac{72}{18} = 4 + 2 + 4 = 10 Ω$

Q. In the given figure switches S1​ and S2​ are in open condition. The resistance across ab when the switches S1​ and S2​ are closed is _______Ω.

when switch S1​ and S2​ are closed 12+612×6​+2+6+126×12​ 1872​+2+1872​=4+2+4=10Ω

Q. In the given figure switches $S_{1}$ and $S_{2}$ are in open condition. The resistance across ab when the switches $S_{1}$ and $S_{2}$ are closed is _______ $Ω$ .

when switch $S_{1}$ and $S_{2}$ are closed

$\frac{12 \times 6}{12 + 6} + 2 + \frac{6 \times 12}{6 + 12}$
$\frac{72}{18} + 2 + \frac{72}{18} = 4 + 2 + 4 = 10 Ω$