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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) positively charged alpha particles, (ii) neutrons? Justify your answer by giving suitable arguments.

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Yes, a thin beam of positively charged alpha particles produces a similar magnetic field because the current produces in the direction of motion of positive change and opposite to the direction of the electron. So, due to this current magnetic field produces.
No, there is no current produced in case of neutrons because neutrons are electrically neutral particles.Therefore, chargeless particles do not produce current. Hence, there is no magnetic field due to a thin beam of moving neutrons.

Final answer
Hence, a thin beam of moving positive charged alpha particles produces a similar type of magnetic field while a beam of moving neutrons does not produce any magnetic field.

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