$A$ thick wire and a thin wire of the same material are successively connected to the same circuit to find their respective resistance. Which one will have lower resistance? Give reason.

(A) The thick wire will have lower resistance.
According to the formula for resistance,$R = \rho \frac{L}{A}$,where $R$ is resistance,$\rho$ is resistivity,$L$ is length,and $A$ is the area of cross-section.
Since both wires are made of the same material,their resistivity $(\rho)$ is the same.
For a given length,resistance is inversely proportional to the area of cross-section $(R \propto \frac{1}{A})$.
$A$ thick wire has a larger area of cross-section compared to a thin wire.
Therefore,the thick wire offers less opposition to the flow of current,resulting in lower resistance.