It is established that an electric current through a metallic conductor produces a magnetic field around it. Is there a similar magnetic field produced around a thin beam of moving (i) alpha particles, (ii) neutrons? Justify your answer.

Explanation

In case of movment of a charged particle the magnetic field is created around the path on which the charged particle moves.
(i) Yes, a thin beam of alpha particles (which are positively charged) is like straight conductor carrying current in the direction of motion.
(ii) No, as neutrons carry no change so no magnetic field would be created around its path.