1. The problem statement, all variables and given/known data A wire of length L=20cm travels with an acceleration a=0.002m/s2 perpendicular to the Earth's magnetic field (B=20μT). Considering that the wire starts from rest, calculate the value of the emf (electromagnetic force) when an hour has gone by. 2. Relevant equations My question: Is current being induced in the wire by the magnetic field? 3. The attempt at a solution I know I first need to calculate a magnetic flux. So I got the speed after one hour: V=Vo+at = 0+3600(.002) = 7.2 m/s Then, magnetic fied for a finite wire: B=(μ0 I /4 pi r) 2*∫cos (opposite angle) from 0 to pi/4 20μT= (√2 μ0 I )/ 4 pi r 141.42 = I / r = (dq/dt) / r I'm thinking since the magnetic field is perpendicular, there is a centripetal acceleration and I can get the radius from there, but I got stuck, and I'm not even sure if the previous work is right. I don't really know how tho get the magnetic flux if the wire is moving, and I thought an area was needed, but this is just a wire. Any help will be greatly appreciated. Thank you.