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प्रश्न
State two properties of a bar magnet ?
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उत्तर
Properties of a bar magnet
- Attractive property : A magnet attracts small pieces of iron, cobalt or nickel.
- Directive property : A magnet when suspended freely, always point towards North and South direction.
- Like poles i.e. North and North or South and South poles repel each other.
- Unlike poles i.e. North and South attract each other.
- Poles always exist in pairs, i.e. poles of a magnet cannot be separated.
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संबंधित प्रश्न
Fill in the blank
To light a table lamp and to run a refrigerator, we use ______ as the source of electricity.
Select the correct alternative
A freely suspended magnet rests in
Answer the following.
Can you bring two similar poles of two different magnetic close together easily? Why?
Tick the most appropriate answer.
The surest test of magnetism is
State if the following statement is true or false. Correct the statement if it is false.
Attraction is the surest test for magnetism.
Define the following term regarding a bar magnet:
Magnetic field
Which magnet will you use?
A window shutter opens and shuts continuously in the wind.
Explain the mechanism by which unmagnetized iron nails get attracted to a magnet when brought near it.
Give scientific reason:
Two steel needles hanging from the lower end of a vertical bar magnet do not hang vertically.
Define the terms magnet and magnetism.
