The equivalent resistance between the terminal points \(X\) and \(Y\) in the given circuit is
Show Hint
In bridge-network problems, always check the balance condition first:
\[
\frac{R_1}{R_2}=\frac{R_3}{R_4}.
\]
If the bridge is balanced, the central branch carries no current and can be removed, making the circuit much easier to solve.