Question

Activity 13.2
Fix a sheet of white paper on a drawing
board using some adhesive material.
Place a bar magnet in the centre of it.
- Sprinkle some iron filings uniformly
around the bar magnet (Fig. 13.2). A
salt-sprinkler may be used for this
purpose.
Now tap the board gently.
What do you observe?​

Answer 1

Answer:

iron filings arrange in a pattern due to the force exerted by the magnet within its magnetic field.lines along which the iron filings align represent magnetic field lines.Crowding of iron filings at the ends of the magnet indicates that the magnetic field is strongest near the poles of the magnet.The strength of magnetic field is indicated by the closeness of the field lines. Closer the lines, more will be the strength and farther the lines, lesser will be the field strength.

Answer 2

Answer:

the magnetic exerts its influence in the region surrounding it therefore the iron fillings experience a force . the force exerted makes iron fillings are arranged in a pattern . the region surrounding a magnet, in which the force of magnet can be detected, is said to have the magnetic field. the lines along which the iron filling align themselves represent magnetic field lines