Am physics eo section a neutron, a proton, an electron and an alpha particle enter a region of constant magnetic field with equal velocities. the magnetic field

AM Physics eo SECTION A neutron, a proton, an electron and an alpha particle enter a region of constant magnetic field with equal velocities. The magnetic field is along the inward normal to the plane of the paper. The tracks of the particles are labelled in figure. The electron follows track x and the alpha particle follows track y. Then x +y= X 2 oth Lmetre carrying a currenti ampere is Cirele. The magnitude oi