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

(a) α-particles and

(b) neutrons? Justify your answer.

When movement of a charged particle takes place, a magnetic field is produced around the path on which the charged particle moves.

(a) Yes, a thin beam of α-particles (positively charged) is like a straight current carrying conductor in the direction of motion.

(b) No, as neutrons carry no charge, so no magnetic field would be created around its path.