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JEE Main 2022 (Online) 30th June Morning Shift

MCQ+4 / -12022

An electric cable of copper has just one wire of radius 9 mm. Its resistance is 14 \(\Omega\). If this single copper wire of the cable is replaced by seven identical well insulated copper wires each of radius 3 mm connected in parallel, then the new resistance of the combination will be :

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