Question

Fine the equivalent resistance between a and b. please give a step-wise explanation. thanks. ​

Answer 1

Answer: The answer is (A) 2 ohms.

Explanation: If we observe the set-up carefully (for convience, think that you are streching the points 'A' and 'B'), the systems above and below the points is in series combination (lets call the upper and lower system of resistors as $R_{1}$ and $R_{2}$ ), which are ultimately in parallel combination.

So, the first step is to calculate the resistance of $R_{1}$ and $R_{2}$ ,

$R_{1}$ = 2.4 + 4 = 6.4 ohm

$R_{2}$ = 2.4 + 1 = 3.4 ohm

Secondly, we will find the net resistace by the formula of parallel combination,

1/R = 1/$R_{1}$ + 1/$R_{2}$

1/R = 1/6.4 + 1/3.4

After solving it, we get,

R = 2.22 ohm ≅ 2 ohm

Answer 2

Answer: 2.24 ohm

Explanation :  See the attachment and Mark as brainliest plz