Question

17. A student fixes a sheet of white paper a drawing board. He places a bar magnet in the centre of it. He
sprinkles some iron-fillings uniformly around the bar magnet. Then the taps the board gently.
Now answer the following questions :
3M
i) What does the student observe ?
ii) Why do the iron - filings arrange in such a pattern?
What does the crowding of the iron - fillings at the ends of the magnet indicate?​

Answer 1

ANSWER:

i)The student observes that the iron fillings arrange in a pattern around the magnet.

ii) Due to the force exerted by the magnet within its magnetic field. They are arranged in a pattern of lines. These lines represent magnetic field lines.

(iii) Crowding of iron filings at the ends of the magnet indicates that the magnetic field is strongest near the poles of the magnet.

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