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प्रश्न
How will you do this?
Explain that a magnet has a certain magnetic field.
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उत्तर
A magnet has a certain magnetic field, which can be demonstrated using the below activity.
Take some drawing cardboard and sprinkle some iron filings on it. Notice the position of the iron filings as a whole. Now, take a bar magnet and slowly bring it below the cardboard. You will observe that the iron filings tend to attract towards the magnet and align themselves as shown.
It represents that the magnet exerts a force around its body with a stronger force near the two poles. Also, this regular pattern of the iron filings on the board represents the lines of magnetic field. Thus, a magnet has a certain magnetic field, which can be represented by curved lines around the magnet.
संबंधित प्रश्न
Draw diagrams of the artificial magnets of four different shapes?
Define the following term regarding a bar magnet:
Effective length
Fill in the blank.
The perpendicular bisector of the line joining the two poles of a magnet is called ...................
How will you do this?
Find the north pole of a magnet.
Bar magnets are often stored in pairs as shown in the figure. E and F being pieces of metal.
Mark on the diagram the poles of the second magnet,
Since every iron atom is a tiny magnet, why are not all iron bar magnets?
Define the following term:
Angle of dip
Explain the following:
Resistance of a conductor
State the laws of magnetism.
The strongest natural magnet is ______.
