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प्रश्न
With the help of a diagram explain the following:
Magnetisation of an iron bar by a single touch method.
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उत्तर
The magnetization of Iron Bar by Single Touch Method: Place the iron piece on the table and stroke it with a bar magnet from A to B with one end of the magnet. When the magnet reaches B it is lifted and brought back to A to repeat the stroke. After a few strokes, we will notice that A has acquired the same polarity as the pole rubbed against it.
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संबंधित प्रश्न
Answer the following.
Why is it not possible to isolate a single magnetic pole?
Answer the following in short.
If a bar magnet is placed over iron filings, where will the attraction of the iron fillings be
- maximum?
- minimum?
Answer the following in detail.
List four methods of magnetizing a magnetic substance.
Define the following term regarding a bar magnet:
Magnetic axis
How will you do this?
Determine whether a material is magnetic or non-magnetic.
How will you do this?
Find the north pole of a magnet.
Differentiate between:
Primary and secondary cell.
Thamizh Dharaga and Sangamithirai were playing with a bar magnet. They put the magnet down and it broke into four pieces. How many poles will be there?
The magnetic poles always exist in pairs.
