Electric charge \( q \) is uniformly distributed over a rod of length \( l \). The rod is placed...

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Electric charge \( q \) is uniformly distributed over a rod of length \( l \). The rod is placed parallel to a long wire carrying a current \( i \). The separation between the rod and the wire is a. Find the force needed to move the
\( P \) rod along its length with a uniform velocity \( v \).

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