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Electric charge q is uniformly distribut...

Electric charge `q` is uniformly distributed over a rod of length / 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 rod along its length with a uniform velocity v

Text Solution

Verified by Experts

The correct Answer is:
`(mu_(0)iqv)/(2pia)`
`F =Il B = lambda VLB`
`F = (a)/(l) V/B = qVB`
`F = qV / B = qVB`
`F =qV (mu_(0))/(4pi) (2i)/(a) = (mu_(0)iqV)/(2pia)`
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