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(C) To find the equivalent resistance between points $x$ and $y$,we analyze the symmetry of the circuit.By applying the principle of symmetry,the node

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$\frac{8R}{3}$

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(C) To find the equivalent resistance between points $x$ and $y$,we analyze the symmetry of the circuit.By applying the principle of symmetry,the nodes that are at the same potential can be connected or disconnected without changing the current distribution.In this circuit,there are $8$ resistors each of resistance $R$.By simplifying the circuit using symmetry,we can redraw it as a combination of series and parallel resistors.After simplifying the network,the equivalent resistance $R_{eq}$ between $x$ and $y$ is calculated as $\frac{8R}{3}$.

What will be the equivalent resistance of the circuit between $x$ and $y$?

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