# A metal rod of length $10\;cm$ and a rectangular . Cross section of $1 \;cm \times \large\frac{1}{2}$$\;cm is connected to a battery across opposite faces. The resistance will be \begin{array}{1 1} \text{maximum when the battery is connected across 1\;cm \times \large\frac{1}{2}$$\;cm$ faces} \\\text{maximum when the battery is connected across $10\;cm \times 1\;cm$ faces} \\ \text{maximum when the battery is connected across $10\;cm \times \large\frac{1}{2}\;$$cm faces} \\ \text{same irrespective of the three faces} \end{array} ## 1 Answer Comment A) Solution : maximum when the battery is connected across 1\;cm \times \large\frac{1}{2}$$\;cm$ faces
$\text{maximum when the battery is connected across$1\;cm \times \large\frac{1}{2}\;cm$faces}$