Five resistors are connected as shown in the diagram. The equivalent resistance between A and B is

Question

Five resistors are connected as shown in the diagram. The equivalent resistance between A and B is (A) 6 ohm (B) 9 ohm (C) 12 ohm (D) 15 ohm

Tardigrade Admin · Accepted Answer

Since the given bridge is balanced, hence there will be no current through 9 Ω resistance. This resistance has no effect and must be ignored in the calculations. <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/physics/3156b3e854967b558ad174d0383a0bb5-.png" /> RA B=(9 × 18/27)=6 Ω

Q. Five resistors are connected as shown in the diagram. The equivalent resistance between $A$ and $B$ is

6 ohm

9 ohm

12 ohm

15 ohm

Since the given bridge is balanced, hence there will be no current through $9 Ω$ resistance. This resistance has no effect and must be ignored in the calculations.

$R_{A B} = \frac{9 \times 18}{27} = 6 Ω$

Q. Five resistors are connected as shown in the diagram. The equivalent resistance between A and B is