Physics - Current Electricity Question with Solution | TestHub

$\frac{R}{6}$

All the resistances are in parallel and connected between$A$&$B$, therefore equivalent circuit is



and equivalent resistance is,

$R_{eq}=\frac{\frac{R}{3}\times \frac{R}{3}}{\frac{R}{3}+\frac{R}{3}}=\frac{R}{6}$