Pls reply to thissss Share with your friends Share 0 Anurag Kumar answered this Dear Student ,As we know that the magnetic field due to a infinitely long current carrying straight conductor at a distance R from the wire is B=μ0i2πrSo, at any point in the circle the r will be same when circle will be in motion also ,{ as distance betwen the two will remain constant because the circle is moving parallel to the wire }So , magnetic field doesnot changeas we know thatthe flux associated to an area is given by ϕ=B→.A→here , ⇒ϕ=BANow let a small area at a distance r i.e. dAflux associated to dA is dϕ=μ0i2πrdA∴ϕ=μ0i2πrdA will be a constant since r→constant , i→constant ,dA→constant doesnot changestherefore there will be no induction since flux is not changing So there will be no force required to maintain its speed constant .∴Force required =0NRegards 0 View Full Answer