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1. A magnetic compass shows a deflection when placed near a current carrying wire. How will the deflection of the compass get affected if the current in the wire is increased? Support your answer with a reason.
 
The deflection of the magnetic compass  because the strength of magnetic field is  to the magnitude of current passing through the straight conductor.
 
2. 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.
 
i. is produced around a thin beam of moving \(\alpha\ -particle\). \(\alpha\ -particle\) being  charged constitutes a current in the direction of beam motion.
 
ii., neutron being electrically a current.