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प्रश्न
How will you do this?
Explain that a magnet has a certain magnetic field.
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
State three important uses of a magnet.
Which magnet will you use?
A window shutter opens and shuts continuously in the wind.
If a bar magnet is cut into equal pieces by cutting it at right angles to its axis at two places, ______ bar magnets are formed, and a total of _____ poles are formed.
Define the following term:
Geographic meridian
Differentiate between:
Primary and secondary cell.
MRI stands for _______.
Magnets are used in _______ for generating electricity.
List out the uses of magnets.
Define the terms magnet and magnetism.
