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.

(N/A) $(i)$ Yes. Alpha particles are positively charged particles. Their motion constitutes an electric current in the direction of their motion,which produces a magnetic field around the beam.
$(ii)$ No. Neutrons are electrically neutral particles. Since they carry no charge,their motion does not constitute an electric current,and therefore,no magnetic field is produced around the beam.