Physics
The magnetic field produced by a current carrying conductor is shown below. Is there a similar magnetic field produced around a thin beam of moving α-particles and neutrons? Justify your answer.

Answer
In case of movement of a charged particle, the magnetic field is created around the particle. The field is around the path on which the charged particle moves. So, a thin beam of α-particles (which are positively charged) is like a straight conductor carrying current in the direction of motion of α-particles. But, as neutrons carry no charge, so no magnetic field would be created around their path.
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