Describe an activity to draw the magnatic firld lines of a bar magnet from one lole to another pole
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Place a card over a strong bar magnet. Sprinkle a thin layer of iron filings over the card with the help of a sprinkler and then tap the card gently. The iron fillings arrange themselves in a regular pattern. This arrangement of iron fillings give us a rough picture of the pattern of magnetic field produced by a bar magnet.
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