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A wire AB is carrying a steady current o...

A wire AB is carrying a steady current of 12A and is lying on the table. Another wire CD carrying 5A is held directly above AB at a height of 1mm. Find the mass per unit length of the wire CD so that it remains suspended at its position when left free. Give the direction of the current flowing in CD with respect to that in AB. [Take the value of `g = 10ms^-2`]

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MODERN PUBLICATION-FORCE ON A CURRENT-EXERCISE
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