Four resistances 10 Ω, 5 Ω, 7 Ω and 3 Ω are connected so that they form the sides of a rectangle A B, B C, C D and D A respectively. Another resistance of 10 Ω is connected across the diagonal A C. The equivalent resistance between A and B is

Question

Four resistances 10 Ω, 5 Ω, 7 Ω and 3 Ω are connected so that they form the sides of a rectangle A B, B C, C D and D A respectively. Another resistance of 10 Ω is connected across the diagonal A C. The equivalent resistance between A and B is (A) 2 Ω (B) 5 Ω (C) 7 Ω (D) 10 Ω

Tardigrade Admin · Accepted Answer

The figure can be drawn as follows:

⇒ RA B=5 Ω

Q. Four resistances $10 Ω, 5 Ω, 7 Ω$ and $3 Ω$ are connected so that they form the sides of a rectangle $A B, BC, C D$ and $D A$ respectively. Another resistance of $10 Ω$ is connected across the diagonal $A C$ . The equivalent resistance between $A$ and $B$ is

$2 Ω$

$5 Ω$

$7 Ω$

$10 Ω$

The figure can be drawn as follows:

$\Rightarrow R_{A B} = 5 Ω$

Q. Four resistances 10Ω,5Ω,7Ω and 3Ω are connected so that they form the sides of a rectangle AB,BC,CD and DA respectively. Another resistance of 10Ω is connected across the diagonal AC. The equivalent resistance between A and B is

2Ω

5Ω

7Ω

10Ω