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प्रश्न
Maximum iron filings stick in the middle of a bar magnet when it is brought near them.
विकल्प
True
False
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उत्तर
This statement is False.
Correct statement:
Maximum iron filings stick in the poles of a bar magnet when it is brought near them.
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संबंधित प्रश्न
Fill in the blank
Like poles ______ each other and unlike poles _____
You are given a magnet. How will you use it to find north-south direction at a place?
Match the following
| Column A | Column B |
| A) Steel | 1) to store magnets |
| B) Soft iron | 2) temporary magnet |
| C) Use in electric bell | 3) permanent magnet |
| D) Magnetic keepers | 4) electromagnet |
Select the correct answer
An example of natural magnet is
State four important properties of a bar magnet?
Answer the following in short.
What is a magnet? Differentiate between natural and artificial magnets.
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?
Define the following term regarding a bar magnet:
Magnetic axis
How will you do this?
Explain that a magnet has a certain magnetic field.
How will you do this?
Find the north pole of a magnet.
There is repulsion between the _____ poles of a magnet and attraction between its _____ poles.
When magnetic material is taken close to a magnet, the material acquires ______.
With whom should I pair up?
| Group 'A' | Group 'B' |
| (a) Compass | 1. The highest magnetic force |
| (b) The door of a cupboard | 2. Like poles |
| (c) Repulsion | 3. A magnet |
| (d) Magnetic pole | 4. A magnetic needle |
Bar magnets are often stored in pairs as shown in the figure. E and F being pieces of metal.
Why are E and F placed in contact with the poles of the magnets as shown in the diagram?
Draw a clearly labelled diagram, to show how a steel bar is magnetised by a divided touch method. A written description is not required.
Define the term Poles of a magnet
Define the following term:
Angle of declination
Differentiate between:
Primary and secondary cell.
Define artificial magnet.
Define electromagnet.
