Physics · Magnetism and Electromagnetic Induction

Correct option is C.

Magnetic fields will not be produced in case of neutral particles.

The protons, cathode rays and alpha particles are charged particles, so the magnetic field deflects them. But there is no charge on the neutrons, so they are not deflected by the magnetic field.

This option is incorrect because A positive charge, top, moving perpendicularly through a magnetic field is deflected. The right-hand rule, bottom, predicts the direction in which the positive charge will be deflected. A similar left-hand rule predicts the deflection of negative charges.

This option is incorrect because A negative charge introduces a negative sign, which flips the direction of the force. So, for a negative charge your right hand lies to you, and the force on the negative charge will be opposite to the direction indicated by your right hand.

This option is correct because Magnetic fields will not be produced in case of neutral particles.

The protons, cathode rays and alpha particles are charged particles, so the magnetic field deflects them. But there is no charge on the neutrons, so they are not deflected by the magnetic field.

This option is incorrect because Option C is correct.