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KCET 2020 Physics Solved Paper

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Question : 49

Total: 60

A metal rod of length 10 cm and a rectangular cross – section of 1 cm ×

cm is connected to a battery across opposite faces. The resistance will be

Same irrespective of the three faces.
Maximum when the battery is connected across 1 cm ×
1
2
cm faces.
Maximum when the battery is connected across 10 cm ×
1
2
cm faces.
Maximum when the battery is connected across 10 cm × 1 cm faces.

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