Question

Explain why iron filings which are sprinkled on a sheet of cardboard over a bar maget, take yp a definite pattern when cardboard is slightly tapped.

ICSE Class 9 Physics Chapter Magnetism

Answer 1

we know that a magnet has mahnetic feild around it...iron fillings which are sprinkled on a sheet of cardboard over a bar magnet take up a definate pattern when thecardboard is slightly taped,because iron fillings set themselves along magnetic lines of force as iron fillings are magnetised by induction and arrannge tgemselves in curved lines called magnetic lines....hope this helped pl mark as brainliest

Answer 2

Answer:

Explain why iron filings which are sprinkled on a sheet of cardboard over a bar magnet take up a definite pattern when cardboard is slightly tapped. The iron filings take up a definite pattern (curved lines). This happens because each piece of iron filing becomes a magnet to the magnetic induction of the magnet.