(c) What does the crowding of iron filings at the end of the magnet indicate?
(i) Magnetic field is weaker near the poles of the magnet.
(ii) Magnetic field is strongest near the poles of the magnet.
(iii) Magnetic field is neither weaker nor strongest near the poles of the magne
(iv) None of these
Answers
(c) This indicates that the strength of magnetic field is greater at poles. It indicates that both the poles of an electromagnet has higher magnetic field power.
(i) The magnetic field of a bar magnet is strongest at either pole of the magnet. It is equally strong at the north pole when compared with the south pole. The force is weaker in the middle of the magnet and halfway between the pole and the center.
(ii) As we can see in the diagram, the magnetic field lines are closer or denser at the poles. So, the magnetic field is strongest around the poles of the magnet. Hence, the correct answer is option (A) Poles of the magnet. Note Magnets have two poles, a north pole, and a south pole.
(iii) The magnetic field of a bar magnet is strongest at either pole of the magnet. It is equally strong at the north pole when compared with the south pole. The force is weaker in the middle of the magnet and halfway between the pole and the center.