When an electric current is present in the wire, the moving electric charges circulate around this cylinder and cut across the magnetic field lines.
(an electric current; is; present in the wire) (the moving electric charges; circulate; L:around this cylinder; T:When an electric current is present in the wire) (the moving electric charges; cut; across the magnetic field lines; T:When an electric current is present in the wire)
an electric current the moving electric charges the moving electric charges
is circulate cut
present in the wire
L:around this cylinder T:When an electric current is present in the wire
across the magnetic field lines T:When an electric current is present in the wire