Question

derive thr relation for magnetic force acting on a stright wire carrying current​

Answer 1

Answer:

We can derive an expression for the magnetic force on a current by taking a sum of the magnetic forces on individual charges. ... Noting that V=Al V = A l , where A is the cross-sectional area of the wire, then the force on the wire is F=(qvdBsinθ)(nAl) F = ( q v d B sin θ ) ( n A l ) .