Question

please tell answer of this.​

Answer 1

Answer:

$R_{AB}=6~ohm\\R_{CD}=3.83~ohm$

Explanation:

I can't find potential difference across these points, since the current isn't given. However, I've solved for equivalent resistances.

When you'll find equivalent resistance between A and B, the 9Ω resistor will not play any role, because, the arrangement is a balanced wheatstone bridge.

Hence, equivalent resistance between A & B will be 6Ω

Across C & D,

1. the 4Ω and 8Ω resistors are in series = 12Ω
2. 5Ω and 10Ω in series = 15Ω
3. The 12Ω, 15Ω and 9Ω in parallel =  $\frac{180}{47}$  = 3.83Ω