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Questions  >>  CBSE XII  >>  Physics  >>  Current Electricity
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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} $

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