Question

find the equivalent resistance of the following network between A and B.

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I need it!!

Answer 1

the answer is

i don't  f*cking know

Answer 2

Answer:

3.6 ohms

Explanation:

We have to find the equivalent resistance between A and B. It is given that ,  

R₁ = R₂ = R₃ = R₄ = 9 ohms.

From the attached figure it is clear that R₁ and R₂ are in series. So their equivalent is given by :

$R'=18\ \Omega$

Now R', R₃ and R₄ are in parallel. So, their equivalent can be given by :

$\dfrac{1}{R_{eq}}=\dfrac{1}{R'}+\dfrac{1}{R_3}+\dfrac{1}{R_4}$

$\dfrac{1}{R_{eq}}=\dfrac{1}{18}+\dfrac{1}{9}+\dfrac{1}{9}$

$R_{eq}=3.6\ \Omega$

So, the equivalent resistance across A and B is 3.6 ohms.