Physics - Current Electricity Question with Solution | TestHub

The wires $ADC$ and $ABC$ will have resistance $5\Omega$ each. These two are joined in parallel between $A$ and $C$. The equivalent resistance $R$ between $A$ and $C$ is, therefore given by $R=\frac{5\Omega \times 5\Omega }{5\Omega +5\Omega }=2.5\Omega$