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Q. Five equal resistances are connected in a network as shown in figure. The net resistance between the points $A$ and $B$ is :
image

JEE MainJEE Main 2021Current Electricity

Solution:

This diagram can be drawn like
image
It is a wheat stone bridge
$\therefore R _{ eq }=\frac{2 R \times 2 R }{2 R +2 R } \Rightarrow R$